Ingredient Desk

Tag: hyaluronic acid

  • Salt & Stone Deodorant: the hyaluronic acid depends on which SKU you buy

    Salt & Stone markets its aluminum-free deodorants on magnesium, niacinamide and hyaluronic acid. Read the actual labels and the hyaluronic-acid story falls apart by SKU and by region. The flagship Stick’s current US ingredient panel does not list hyaluronic acid at all. The one Salt & Stone product that genuinely contains it is the separate Deodorant Gel, where it sits at position 19 of 20 — second to last. And the Stick’s own formula is not even consistent across the brand’s regional storefronts.

    This is the site’s usual game — quote the label, show where the hero ingredient really sits — but Salt & Stone makes it unusually tangled, because there is more than one label. Depending on which SKU you buy and which country’s storefront you read, the “same” product lists different ingredients. So before trusting a hyaluronic-acid claim on the shelf, it is worth knowing which jar actually contains any.

    Where does hyaluronic acid sit on the Salt & Stone Stick?

    It doesn’t — not on the current US panel. Here is the full list for the flagship Extra-Strength Aluminum-Free Deodorant Stick, quoted verbatim from Salt & Stone’s own US product listing (Black Rose & Oud variant, checked across five scents; base formula identical before the fragrance tail), read on 14 October 2026:

    Caprylic/Capric Triglyceride, Tapioca Starch, Ozokerite, Magnesium Hydroxide, Sodium Bicarbonate, Cocos Nucifera (Coconut) Oil, Fragrance (Parfum), Butyrospermum Parkii (Shea) Butter, Niacinamide, Helianthus Annuus (Sunflower) Seed Oil, Tocopherol, Spirulina Platensis Extract, Lactobacillus Ferment, Maltodextrin, [scent-specific fragrance components: Benzyl Benzoate / Geraniol / Limonene / Citral / Linalool / Eugenol, etc.]

    Source: saltandstone.com, the brand’s own product page, read 14 October 2026, and corroborated against a major US beauty retailer’s listing for the same variant (page dated 16 September 2026) the same day. Magnesium Hydroxide is the fourth ingredient — genuinely near the top, above the 1% floor, so the brand’s headline mineral really is present at a meaningful level. Niacinamide is ninth. There is no hyaluronic acid or sodium hyaluronate anywhere in this panel. Worth noting for anyone drawn to the brand’s “baking soda-free” reputation in the category: Sodium Bicarbonate — baking soda — sits at position five, present and fairly high.

    Nib the small round desk creature holding a magnifying glass over a Salt and Stone deodorant stick, scanning the ingredient list for hyaluronic acid and not finding it.
    Nib reads the US Stick label top to bottom, hunting for the hyaluronic acid the marketing promised, and never finds it.

    So which Salt & Stone product actually contains hyaluronic acid?

    The Deodorant Gel — a different, sensitive-skin SKU. Here is its full list, quoted verbatim from Salt & Stone’s own Santal & Vetiver Deodorant Gel listing and corroborated against the brand’s mini-duo product page, both read 14 October 2026:

    Propylene Glycol, Water (Aqua), Sodium Stearate, Fragrance (Parfum), Polyglyceryl-10 Caprylate/Caprate, Propanediol, Saccharomyces Ferment, Glycerin, Glyceryl Caprylate, Maranta Arundinacea Root Powder, Zea Mays (Corn) Starch, Glyceryl Undecylenate, Aloe Barbadensis Leaf Juice, Potassium Sorbate, Sodium Benzoate, Macrocystis Pyrifera (Kelp) Extract, Saccharina Longicruris Extract, Leuconostoc/Radish Root Ferment Filtrate, Hyaluronic Acid, Citric Acid, Benzyl Benzoate

    Source: saltandstone.com, Aluminum Free Gel Deodorant Mini Duo, page dated 13 October 2026, corroborated against a major retailer’s Deodorant Gel listing (page dated 6 October 2026) the same day. Hyaluronic Acid is position 19 of 20 — second to last, ahead only of Benzyl Benzoate, a fragrance-fixative and common contact allergen. US ingredient lists run in descending order of concentration only down to 1%; after that, order is no longer required, so every ingredient past roughly the first eight to ten can be in any sequence. That is exactly the stretch where this hyaluronic acid sits. Per the FDA’s cosmetics labeling guide, that is all a label at that depth promises: a trace, a long way below the ingredients doing the actual work. Note too that this Gel is built on propylene glycol and glycerin — it has no magnesium hydroxide and no baking soda at all, a completely different base from the Stick.

    Nib pointing with a pencil at the very bottom of a long gel-deodorant ingredient list, where hyaluronic acid sits in the second-to-last slot.
    In the one SKU that does contain it, the hyaluronic acid turns up right at the bottom — position 19 of 20.

    Why do two countries’ labels for the same Stick disagree?

    Because they do, and I can only report the discrepancy, not resolve it. A major international beauty retailer’s UK and Thailand storefronts list a materially different panel for the same Extra-Strength Stick, read 14 October 2026:

    Caprylic/Capric Triglyceride, Tapioca Starch, Magnesium Hydroxide, Sodium Bicarbonate, Ozokerite, Cocos Nucifera (Coconut) Oil, Sodium Hyaluronate, Spirulina Platensis Extract, Fragrance (Parfum), Butyrospermum Parkii (Shea) Butter, Helianthus Annuus (Sunflower) Seed Oil, Lactobacillus Ferment, Tocopherol, Maltodextrin

    Source: that retailer’s UK storefront (page dated 27 September 2026), corroborated against its Thailand storefront the same day. Here Sodium Hyaluronate appears at position 7, and niacinamide is absent entirely — the mirror image of the US panel, which has niacinamide and no hyaluronate. The discrepancy is checkable by anyone comparing the two regions’ listings side by side.

    US Stick (brand + US retailer listing)
    Magnesium Hydroxide #4, Niacinamide #9, no hyaluronic acid on the panel.
    UK / Thailand Stick (same retailer, other regions)
    Sodium Hyaluronate #7, no niacinamide. A different base order from the US list.
    Deodorant Gel (sensitive-skin SKU)
    Hyaluronic Acid #19 of 20; no magnesium, no baking soda.

    I can’t tell you which panel is the true current formula in your jar. The honest reading — and the one the sourcing supports — is that the US and UK/Asia listings for this product do not match, so a shopper buying on the hyaluronic-acid claim should check their own region’s physical label rather than the marketing. Retailer listings also go stale, and a supplier or data-entry error at one storefront would look exactly like a genuine formula difference. I am not claiming the brand is misrepresenting anything; I’m showing that the labels, as published, disagree. For the record, deodorant (unlike antiperspirant) is a cosmetic in the US, not an OTC drug, and per the FDA the agency does not pre-approve cosmetic claims — “natural” carries no regulatory weight on any of these labels.

    Nib holding two different ingredient lists side by side, one labelled US and one labelled UK, looking back and forth between them in confusion because they do not match.
    Two labels for the “same” Stick, one from each side of an ocean — and Nib can’t make them agree.

    Does the hyaluronic acid’s position mean the deodorant is bad?

    No — and that is the point worth being careful about. A trace of hyaluronic acid near the end of a list isn’t a defect; it is simply far less than the marketing implies, and in a product that sits on your skin for seconds before you dress, a humectant’s job is marginal anyway. The ingredients that decide how a Salt & Stone deodorant feels and performs are the ones at the top: the triglyceride and starch base, the magnesium hydroxide, the fragrance. If something irritates, the likeliest culprit is the fragrance tail, not the magnesium or the baking soda. Named dermatologists in NBC News Select’s natural-deodorant guide make the same point: “natural” is not FDA-regulated, these formulas mask or absorb rather than stop sweat, and there is no established health advantage over conventional antiperspirants. And the baking-soda panic is overstated: the Cosmetic Ingredient Review’s published safety assessment of sodium bicarbonate concluded it is not a skin or eye irritant in patch studies and is safe as used in cosmetics — a more reassuring picture than the “natural deodorant gave me a rash” discourse suggests, where the fragrance is the likelier trigger.

    Nib setting down the magnifying glass and nodding calmly, having decided the hyaluronic acid is just a small finishing touch rather than a problem.
    Nib’s verdict: a trace humectant isn’t a scandal — it just isn’t the story the front of the jar tells.

    What should you actually check before you buy?

    Read the panel on the jar in your hand, not the marketing and not another country’s listing. If hyaluronic acid is the reason you’re reaching for Salt & Stone, the Stick on a US shelf probably doesn’t contain it, and the Gel that does carries it at a trace. If you simply want an aluminum-free stick where the ingredients you can read match what’s on the front, that is a reasonable thing to want — and it is the thing our own Evil Goods tallow deodorant is built around (Ingredient Desk is published by the team behind Evil Goods, and we link it here because the whole piece is about label trust). We make no sweat-reduction or efficacy claim for it; it is a cosmetic deodorant like the others here. Whatever you choose, the label is the honest document — the box is advertising.

    FAQ

    Does Salt & Stone’s deodorant Stick contain hyaluronic acid?
    On the current US ingredient panel, no — it lists magnesium hydroxide, sodium bicarbonate and niacinamide, with no hyaluronic acid or sodium hyaluronate. The UK and Thailand listings for the same Stick do show sodium hyaluronate at position 7, so it depends which region’s label you read.

    Which Salt & Stone product actually has hyaluronic acid?
    The Deodorant Gel, a separate sensitive-skin SKU. It lists Hyaluronic Acid at position 19 of 20 — second to last.

    Where does magnesium sit on the Salt & Stone Stick?
    Magnesium Hydroxide is the fourth ingredient on the US panel, above the 1% threshold, so it is present at a meaningful level.

    Is the baking soda in a natural deodorant a problem?
    The Cosmetic Ingredient Review found sodium bicarbonate is not a skin or eye irritant in patch testing and is safe as used in cosmetics. Fragrance is the more common irritation trigger in deodorants.

    Nib the round desk creature holding up a single deodorant label like a trophy, pointing at it with the pencil, as if to say the label is the only document worth trusting.
    Nib’s parting note: whichever deodorant you pick, trust the label on the jar — not the front of the box.

  • Peter Thomas Roth Water Drench: Hyaluronic Acid Is the 6th Ingredient

    On the Peter Thomas Roth Water Drench Hyaluronic Cloud Cream label, Sodium Hyaluronate — the INCI name for hyaluronic acid — is the sixth ingredient, listed after two separate silicone compounds. The product is sold on a “30% Hyaluronic Acid Complex,” but that “30%” names a proprietary blend, not the concentration of hyaluronic acid in the cream. The second ingredient, before glycerin, is Dimethicone.

    I like reading the ingredient list on a product whose whole name is a promise. “Water Drench.” “Hyaluronic.” “Cloud Cream.” Peter Thomas Roth’s Water Drench Hyaluronic Cloud Cream ($55 for 1.7 oz at Dermstore and Macy’s as of October 2026) leans its entire pitch on a “30% Hyaluronic Acid Complex.” So I went and read the label — and the hyaluronic acid turns out to be sixth on the ingredient list.

    Nib, a small round pencil-sketched creature, holds a magnifying glass up to a jar labelled 30% and squints at the small print on the back.
    Nib reads the back of the jar, not the front. The “30%” is on the front.

    What does “30% Hyaluronic Acid Complex” actually mean?

    It means less than it sounds like, and the word doing the quiet work is Complex. A “complex” is a supplier- or brand-defined blend. Peter Thomas Roth does not publish what is in the complex or what fraction of the formula it represents, so “30%” cannot be read as “30% hyaluronic acid.”

    There is a physical reason it cannot. A 30% sodium hyaluronate solution would be a stiff, barely-pourable paste, not a light cream — hyaluronic acid is an extraordinary water-binder even at tiny amounts. In leave-on skincare, HA typically sits between 0.2% and 1%, as a 2025 review in Pharmaceutics summarising its cosmetic use lays out in the published literature. Against that calibration, a cream genuinely built on 30% HA would not behave like a cream at all.

    The likelier reading is ordinary and not sinister: brands often buy a pre-made aqueous blend that is itself, say, 30% HA by weight, then use it at a few percent of the finished formula. That would leave real HA somewhere around 1–2%, which is exactly what a position-6 placement implies. I can’t confirm the arithmetic without a disclosure or a certificate of analysis, and neither can you — which is the point.

    Nib points a pencil at a long vertical INCI list taped to the wall, tracing down past the top entries to a line highlighted sixth from the top.
    Counting down the list: water, silicone, glycerin, solvent, a second silicone — then hyaluronic acid.

    Where does the hyaluronic acid actually sit?

    Here is the top of the list, quoted verbatim. INCI is ordered by concentration down to 1%, so position is the most honest number a label gives you for the ingredients near the top.

    Sodium Hyaluronate is the sixth ingredient. Ahead of it: Water, Dimethicone, Glycerin, Dipropylene Glycol, and a second silicone, Dimethicone/PEG-10/15 Crosspolymer. Everything listed above it — water, a silicone, glycerin, a solvent, and a second silicone — is present at a higher level than the named hero, and two of those are silicones.

    # Ingredient (INCI) What it is
    1 Water/Aqua/Eau Solvent base
    2 Dimethicone Silicone film-former / occlusive
    3 Glycerin Humectant
    4 Dipropylene Glycol Solvent / humectant
    5 Dimethicone/PEG-10/15 Crosspolymer A second, cross-linked silicone
    6 Sodium Hyaluronate Hyaluronic acid — the named hero

    None of that makes it a bad moisturizer. Glycerin is a workhorse humectant and silicones have a real job, which is the next question. But “Water Drench” paints a picture of a formula carried by water and hyaluronic acid, and the label describes one carried by water and silicone.

    The full US ingredient list, verbatim:

    Water/Aqua/Eau, Dimethicone, Glycerin, Dipropylene Glycol, Dimethicone/PEG-10/15 Crosspolymer, Sodium Hyaluronate, Yeast Extract, Ceramide AP, Ceramide EOP, Ceramide EOS, Ceramide NP, Ceramide NS, Sambucus Nigra Fruit Extract, Sodium PCA, Tocopherol, Saccharide Isomerate, Caprooyl Phytosphingosine, Caprooyl Sphingosine, Saccharomyces/Iron Ferment, Saccharomyces/Copper Ferment, Saccharomyces/Silicon Ferment, Saccharomyces/Magnesium Ferment, Saccharomyces/Zinc Ferment, Olea Europaea (Olive) Leaf Extract, Cholesterol, Citric Acid, Sodium Citrate, Methyl Gluceth-20, Sodium Chloride, Trisiloxane, Propylene Glycol, Ceteareth-25, Potassium Sorbate, Sodium Benzoate, Behenic Acid, Butylene Glycol, Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone, Cetyl Alcohol, Ethylhexylglycerin, Mica, Phenoxyethanol.

    Source: a major US retailer’s product listing (catalog ID P416160), read 1 October 2026, matching the ingredient list published on peterthomasroth.com. This is the US formula; a 2024 Canadian listing for the same product shows a different silicone profile with Sodium Hyaluronate at position 8, so the formula may vary by region and over time.

    Nib pokes the surface of a smooth silky blob of cream with a pencil, watching it slide, a small thought-bubble showing a droplet of silicone oil.
    The silky, slip-on-skin feel most people read as “hydration” is largely the silicone at position 2.

    What is the silicone at position 2 doing?

    Dimethicone is a silicone film-former. It sits on the skin as a thin, breathable layer that slows water loss and gives that instantly-smooth, slip feel — the sensation a lot of people interpret as “deeply hydrating” the moment they rub it in. A 2023 review in the Journal of Clinical and Aesthetic Dermatology describes exactly this occlusive, film-forming role, and an ingredient explainer at Dermapedia puts the everyday moisturizer range at roughly 1–10%.

    There is nothing wrong with dimethicone. It is well-tolerated and it genuinely helps skin hold moisture by occlusion. The honest observation is narrower: in a cream named “Water Drench,” the thing most responsible for the drenched feeling is a silicone, not the water or the hyaluronic acid on the front of the box.

    Nib holds up a stopwatch reading 72 and looks sceptically at a tiny vial labelled with the number sixteen, a tape measure showing a very short length.
    The “72-hour” ingredient is the sixteenth on the list. Nib checks the stopwatch against the dose.

    What about the “72-hour hydration” claim?

    That claim rides on a different ingredient: Saccharide Isomerate, sold as Pentavitin, which is the sixteenth ingredient — after all five ceramides, the elderberry extract, Sodium PCA and vitamin E. It is a carbohydrate that binds to the skin’s own natural moisturizing factor rather than a form of hyaluronic acid.

    Here is the part worth knowing: the manufacturer, DSM-Firmenich, demonstrates the 72-hour effect at a 3% concentration in its own studies, with a recommended use range of 1–5%. Position 16 — below five ceramides that themselves are usually present at a fraction of a percent — is consistent with the low end of that range. That doesn’t make the 72-hour figure false. It means the number comes from a specific tested dose, and the label gives you no way to know whether this formula matches it.

    So is it a good buy at $55?

    It’s a competent, pleasant moisturizer with a real ceramide blend, glycerin, a humectant carbohydrate and some hyaluronic acid. If the silky finish and a well-rounded humectant mix are what you’re after, it does that. What it is not is a cream carried by hyaluronic acid, which is what the name and the “30%” badge imply. You’re paying a premium partly for a marketing number that describes an undisclosed blend.

    If the thing you actually want is a product where the active is named on the label instead of buried in a complex, that’s the whole design brief behind our own Copper Peptide Blue Honey Serum (full disclosure: Ingredient Desk is published by the team behind Evil Goods) — copper peptides, hyaluronic acid, Manuka honey and niacinamide, named on the product rather than wrapped in a percentage you can’t trace. I’d still rather you read its label the same way you just read this one.

    Frequently asked questions

    Does Water Drench Cloud Cream contain 30% hyaluronic acid?
    No. The “30% Hyaluronic Acid Complex” names a proprietary blend; its composition and percentage are not disclosed. Sodium Hyaluronate (the INCI name for HA) is the sixth ingredient on the US label.
    What is the first active after water?
    Dimethicone, a silicone film-former, is the second ingredient — ahead of glycerin and the hyaluronic acid.
    Where does the “72-hour hydration” claim come from?
    From Saccharide Isomerate (Pentavitin), the sixteenth ingredient. Its maker demonstrates the effect at 3%; the recommended range is 1–5%.
    Is the formula the same everywhere?
    Not necessarily. A 2024 Canadian listing showed a different silicone profile and HA at position 8. This piece uses the US formula read on 1 October 2026.
    Nib sits on top of the closed jar, pencil behind one ear, holding up a small sign reading 'read the back' with a satisfied grin.
    Nib’s one rule of the ingredient desk: the front of the jar is the pitch, the back is the formula. Read the back.

  • YTTP Superfood Air-Whip: The Kale Is the 10th Ingredient

    Youth to the People’s Superfood Air-Whip
    moisturizer is named for kale, spinach and green tea. On the label, kale is the
    10th ingredient, green tea the 11th and spinach the 15th, in a list of
    thirty-seven entries. The first nine — water, glycerin, caprylic/capric
    triglyceride and squalane among them — are where the moisturizing work
    actually happens.

    A product called Superfood is making a promise with its name, and the
    promise is specific: kale, spinach, green tea. These are the ingredients on the
    front of the carton and all over the marketing. So the honest thing to do is read
    the back, in order, and see where those three actually land — because US
    labels are printed in descending order of how much is in the jar, which means the
    list itself tells you something the front never will.

    Pencil sketch of Nib, a small round creature, holding a magnifying glass up to a tub of Superfood Air-Whip face moisturizer, starting to read the ingredient list at the top.
    Nib picks up the tub with kale, spinach and green tea on the front, and starts reading at ingredient one.

    What’s in it, in order?

    Here is the full ingredient list for the current Superfood Air-Whip
    Lightweight Face Moisturizer with Hyaluronic Acid    , as published on the
    major US and Australian retail listings that carry it, including Kohl’s and Mecca.
    Every listing carried the identical list when they were read between
    22 September and 8 October 2026; the retailer
    pages carry the standard note that “the list of ingredients is subject to change,
    please consult the packaging of the product purchased,” so treat this as the label
    as published in that window rather than a reading off a jar in your hand:

    Aqua/Water/Eau, Glycerin, Caprylic/Capric Triglyceride,
    Pentaerythrityl Tetraethylhexanoate, Pentylene Glycol, Betaine, Squalane,
    Helianthus Annuus Seed Oil/Sunflower Seed Oil, Aloe Barbadensis Leaf Juice
    Powder, Brassica Oleracea Acephala Leaf Extract [Kale],
    Camellia Sinensis Leaf Extract [Green Tea], Chamomilla Recutita
    Flower Extract, Medicago Sativa Extract/Alfalfa Extract, Sarcosine,
    Spinacia Oleracea/Spinach Leaf Extract [Spinach], Copper PCA,
    Hydrolyzed Sodium Hyaluronate, Hydroxyacetophenone, Menthoxypropanediol,
    Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate, Sodium Hyaluronate, Sodium
    Hydroxide, Tetrasodium Glutamate Diacetate, 3-O-Ethyl Ascorbic Acid, Panthenol,
    Tocopherol, Hydrogenated Lecithin, Acrylates/C10-30 Alkyl Acrylate Crosspolymer,
    Carbomer, Cetearyl Alcohol, Cetearyl Glucoside, Citric Acid, Glycine Soja
    Oil/Soybean Oil, Limonene, Chlorphenesin, Phenoxyethanol, Parfum/Fragrance.

    The bracketed plain names are mine, added for readability; everything else is
    the published INCI, in its published order.

    Pencil sketch of Nib tapping a pencil on the tenth line of a long numbered ingredient list, where the word KALE is circled, with nine lines above it.
    Ten lines down, past water, glycerin and squalane, Nib finds the first superfood.

    Where do the superfoods actually land?

    US cosmetic labels list ingredients in descending order of concentration, but
    only down to the 1% line. Below 1%, a manufacturer may list ingredients in any
    order (US FDA, Cosmetics Labeling Guide, 21 CFR 701.3(f)(2)). That
    rule is the key to reading any “hero ingredient” claim: position above the 1% line
    is meaningful; position below it is not strictly ranked.

    # Ingredient What it is
    1 Aqua/Water Solvent — the base
    2 Glycerin Humectant — the main moisture-drawing worker
    3 Caprylic/Capric Triglyceride Lightweight emollient oil
    4 Pentaerythrityl Tetraethylhexanoate Synthetic ester — skin-feel
    5 Pentylene Glycol Humectant / preservative booster
    6 Betaine Humectant
    7 Squalane Emollient — listed three places above kale
    8 Sunflower Seed Oil Emollient oil
    9 Aloe Leaf Juice Powder Botanical, typically a small addition
    10 Kale (Brassica Oleracea) First superfood — the name ingredient
    11 Green Tea (Camellia Sinensis) Second superfood
    15 Spinach (Spinacia Oleracea) Third superfood
    24 3-O-Ethyl Ascorbic Acid The “Vitamin C” — a stabilized derivative
    36 Phenoxyethanol Primary preservative
    37 Parfum/Fragrance Fragrance blend — list also names Limonene at #34

    So the three superfoods start at #10 and run to #15, sitting behind the water,
    the humectants and the emollient oils. Can I tell you they are below 1%? Honestly,
    no — and I want to be careful here, because that is exactly the kind of claim
    that sounds precise and isn’t. Position #10 is after aloe powder, which is usually
    a small addition, so the superfood block is plausibly down near that 1% line; but
    the label alone does not prove it, and the brand does not publish concentrations.
    What the list does show, without any guessing, is the ranking of what the
    formulator put the most of: water, glycerin, caprylic/capric triglyceride and
    squalane. Those are the moisturizer. The superfoods are supporting players.

    None of that makes it a bad product. Glycerin and squalane are well-proven, and
    a gel-cream built on them will moisturize perfectly well. The gap is only between
    the name and the ranking: a jar called Superfood leads, by
    weight, with the same humectant base as most of the category.

    Pencil sketch of Nib holding a small leaf labelled KALE in one hand and a large bottle labelled GLYCERIN in the other, looking between them.
    A leaf at number ten, the glycerin doing the heavy lifting up at number two. Nib keeps the ranking straight.

    What does research say about kale and green tea on skin?

    This is where it gets genuinely interesting rather than just underwhelming,
    because kale and green tea are not inert — they are ingredients with real,
    if modest, evidence, and the evidence has a number attached to it.

    A 2025 review of kale in cosmetics
    (Molecules, October 2025)
    gathers the antioxidant and skin-conditioning work on kale extract. The topical
    studies it describes used kale at roughly 2–5% — one serum at 5%
    reduced a collagen-degrading enzyme markedly over the test period. Green tea is
    better studied still: a small 2024 clinical trial
    (green tea 3% cream, 36 subjects, 2024)
    found a 3% green tea extract cream produced measurable improvement over eight
    weeks, and reviews of green tea in skincare commonly describe around 5% as the
    level where effects are reliably seen.

    Hold those numbers next to the label. The studies that found an effect used
    kale and green tea at low-single-digit percentages as the point of the
    formula. Here they arrive at #10 and #11, below
    the humectant base, at a concentration the brand does not disclose. I can’t tell
    you what percentage is in the jar — nobody outside the lab can from a label.
    What I can say is that the research showing a benefit used these extracts at levels
    where they led the formula, and on this label they do not. That is a fair thing to
    weigh before paying a superfood premium.

    Pencil sketch of Nib at a desk comparing a lab beaker labelled 5% to a tiny dropper, a research paper open beside the ingredient list.
    The studies used a few percent on purpose. Nib checks that against a superfood sitting tenth.

    Is the “3 Weights of Hyaluronic Acid” claim on the label?

    The listing advertises “3 Weights of Hyaluronic Acid.” On the label I can read,
    there are two distinct hyaluronic compounds: Hydrolyzed Sodium Hyaluronate (#17)
    and Sodium Hyaluronate (#21). A third, separately named HA form is not visible in
    this list.

    I’d rather flag that as an open question than call it an error, because there
    are honest explanations. The brand may be counting a crosspolymer or a molecular-
    weight variant that isn’t separately named under INCI rules, or the formula on
    these retail pages may differ in some detail from the physical carton. What is
    accurate to say is narrow and checkable: the label as published shows two HA
    forms, and the marketing says three.     If the third is in there, it is not
    visible in the ingredient declaration I can read.

    The “Vitamin C” is worth the same plain treatment. It is on the label as
    3-O-Ethyl Ascorbic Acid at #24 — a stabilized vitamin C derivative, not
    L-ascorbic acid, and well down the list. A legitimate ingredient; just not the
    same molecule as “vitamin C” unqualified, and not in a leading position.

    So is the Superfood Air-Whip worth it?

    If you want a light, water-and-glycerin gel-cream with a squalane emollient and
    some botanical extras, this is a competent one, and plenty of people clearly like
    how it feels. If you are buying it because of the kale, spinach and green
    tea — expecting those to be the active heart of the formula — the
    label says they are supporting players ranked below the base, at a concentration
    the brand does not publish.

    If you would rather use a face moisturizer whose emollient is the thing it
    leads with, that is the sort of product we make: our
    beef tallow moisturizer
    is built around tallow and a short supporting cast rather than a long botanical
    tail. (Full disclosure: Ingredient Desk is published by the team behind Evil
    Goods, so that one is ours.)     It is a different philosophy, not a cure for
    anything — shorter list, emollient first. Whether that suits your skin is
    genuinely a matter of preference and what your face likes.

    FAQ

    Where is the kale in Youth to the People Superfood Air-Whip?
    Kale (Brassica Oleracea Acephala Leaf Extract) is the 10th ingredient in a list of
    thirty-seven. Green tea is 11th and spinach is 15th. Water, glycerin,
    caprylic/capric triglyceride and squalane are all listed ahead of them.

    Are the superfoods below 1%? The label does not prove it. US
    rules let ingredients under 1% be listed in any order, and the superfood block
    sits just after aloe powder, so it is plausibly near that line — but
    position alone is not proof, and the brand does not disclose concentrations.

    Does the green tea do anything at that position? Green tea
    extract has real evidence in skincare, but the clinical work that found effects
    used it at roughly 3–5%, as the point of the formula. The concentration in
    this product is not disclosed, and on the label it sits 11th.

    Is the “3 Weights of Hyaluronic Acid” claim accurate? The
    label as published shows two distinct HA forms, Hydrolyzed Sodium Hyaluronate and
    Sodium Hyaluronate. A third separately named form is not visible; whether it is a
    crosspolymer or a weight variant not separately listed is an open question.

    Is the “Vitamin C” in it real vitamin C? It is
    3-O-Ethyl Ascorbic Acid, a stabilized derivative of vitamin C, at position #24. It
    is a legitimate ingredient but not L-ascorbic acid, and it is well down the list.

    When was this label read? The ingredient list was taken from
    the major US and Australian retail listings that carry it, including Kohl’s and
    Mecca, between 22 September and 8 October 2026, where every listing
    matched. Retailers note the list can change, so check your own carton.

    Pencil sketch of Nib closing a notebook beside the Superfood tub, a page showing the number 10, satisfied at having read the whole label.
    Label read to the last line. Nib closes the notebook: the front said superfood, the list said tenth.

  • Tatcha The Dewy Skin Cream: Hyaluronic Acid Is the 25th Ingredient

    Tatcha The Dewy Skin Cream is sold on hyaluronic
    acid — a major retailer’s listing leads with “Hyaluronic Acid,
    Red Algae, and Hadasei-3.” But on the ingredient list read from tatcha.com
    on 5 September 2026, sodium hyaluronate — the INCI name for
    hyaluronic acid — is the twenty-fifth name on a list of forty-seven, sitting
    below nine botanical extracts in the part of the label where everything is
    present at one percent or less. The rich, dewy feel of this $74 cream is built
    higher up, from dimethicone (#5), squalane (#6) and a stack of emollient esters.
    The HA is really in there, and hyaluronic acid works even at low levels —
    but it is a supporting player wearing the front of the jar.

    Tatcha The Dewy Skin Cream is one of the most-searched prestige moisturizers
    in America, a long-running bestseller at $74 for 50 ml. Its whole marketing
    identity is the trio on the front: hyaluronic acid, red algae, and the
    trademarked Hadasei-3 Japanese-botanical complex. The product page promises a
    cream that “hydrates, visibly plumps and smooths lines.” Hyaluronic
    acid gets top billing.

    The back of the jar — the actual ingredient list, ordered by weight down
    to about the one-percent mark — tells a story you can check yourself in a
    couple of minutes. We read the whole label. Here is where everything actually
    sits.

    Where does the hyaluronic acid actually land on the label?

    Here is the full list, quoted verbatim from the product page at tatcha.com,
    read on 5 September 2026 (HTTP 200). The same forty-seven names,
    in the same order, appear on two major-retailer listings for the product —
    the full-size and the 10 ml mini — indexed within the past week. Tatcha’s
    own footer notes the list is subject to change, so check the packaging on the
    jar you buy:

    Aqua/Water/Eau, Saccharomyces/Rice Ferment Filtrate, Glycerin, Propanediol, Dimethicone, Squalane, Diisostearyl Malate, Behenyl Alcohol, Myristyl Myristate, Dipentaerythrityl Hexahydroxystearate, Bis-Diglyceryl Polyacyladipate-2, Tridecyl Trimellitate, Inositol, Sorbitan Tristearate, Beheneth-20, Camellia Sinensis Leaf Extract, Cladosiphon Okamuranus Extract, Chondrus Crispus Extract, Betaphycus Gelatinum Extract, Oryza Sativa (Rice) Bran Extract, Panax Ginseng Root Extract, Origanum Majorana Leaf Extract, Thymus Serpyllum Extract, Malva Sylvestris (Mallow) Flower Extract, Sodium Hyaluronate, Gold, Sericin, Phytosteryl Macadamiate, Tocopherol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Sorbitan Isostearate, Polysorbate 60, Butylene Glycol, Dimethicone/Vinyl Dimethicone Crosspolymer, Sodium Benzoate, Gluconolactone, Ethylhexylglycerin, Parfum/Fragrance, Alcohol, Phenoxyethanol, Citral, Limonene, Linalool, Mica, Tin Oxide, Titanium Dioxide (CI 77891), Violet 2 (CI 60725).

    Sodium Hyaluronate is the twenty-fifth name on that list of forty-seven. It
    appears after water, a rice ferment, two humectants, silicone, squalane, six
    emollient esters and thickeners, two more helpers, an emulsifier — and then
    after nine plant and algae extracts: green tea, Okinawa mozuku algae,
    Irish moss, another red algae, rice bran, ginseng, marjoram, wild thyme and
    mallow flower. On a label ordered by weight, a hero ingredient in
    twenty-fifth place, below all nine botanicals, is near the middle-to-back of the
    formula, not the front.

    One structural fact does most of the work here. Under the FDA’s cosmetic
    labeling rule, ingredients present at one percent or less may be listed in any
    order after the ingredients above one percent
    (FDA
    Cosmetics Labeling Guide    , 21 CFR 701.3(f)(2)). In a formula this long, the
    under-one-percent block begins well before position twenty-five — the nine
    botanical extracts and everything after them, hyaluronic acid included, are in
    it. So the honest, checkable statement is this: sodium hyaluronate is present at
    one percent or less. We cannot say it is definitely lower than the nine
    botanicals listed before it, because within the under-one-percent group the order
    is at the maker’s discretion. The position is verifiable; the exact
    percentage is not, and Tatcha does not disclose it.

    Marketed hero
    Hyaluronic Acid (sodium hyaluronate)
    Position on label
    Twenty-fifth of forty-seven, in the ≤1% block, below nine botanicals
    Building the cream
    Dimethicone (#5), squalane (#6) and six emollient esters (#7–#12)
    Price
    $74 / 50 ml, per tatcha.com, 5 Sep 2026
    Source of list
    tatcha.com, read 5 Sep 2026 (HTTP 200); corroborated at two major-retailer listings
    Nib the small round pencil-sketch creature holds a magnifying glass up to a squat lavender-tinted jar labelled The Dewy Skin Cream, squinting at the tiny ingredient type on the back rather than the big Hyaluronic Acid wording on the front.
    The front sells hyaluronic acid. Nib flips the $74 jar over to see where the HA actually lands.

    So what is actually building the dewy cream you feel?

    The ingredients doing the sensory work — the slip, the cushion, the
    famous dewy finish — sit near the top of the list, and none of them is on
    the front of the jar.

    The rice ferment at position two is genuinely near the top.
    Saccharomyces/Rice Ferment Filtrate is the leading named botanical in the
    formula, and it is fair to say Tatcha does not bury all its botanicals
    — this one is really in the top tier by weight. That is a real distinction
    from formulas that push every plant extract into the tail.

    Then the texture engine kicks in at #5 and #6. Dimethicone
    (#5) is a silicone; the Cosmetic Ingredient Review classifies the methicones as
    skin-conditioning occlusives that provide a smooth, non-greasy film and slow
    water loss from the surface. Squalane (#6), which Tatcha markets as
    “biomimetic squalane,” is a well-liked lightweight emollient
    — and at position six it is meaningfully present, more so than the HA. Below
    those come six emollient esters and fatty thickeners in a row (positions
    7–12): diisostearyl malate, behenyl alcohol, myristyl myristate and three
    more. That block is the rich, slip-y, cushiony body of the cream.

    The humectants that actually pull water toward skin are cheap and high on the
    list: glycerin at #3 and propanediol at #4, with butylene glycol turning up again
    at #33. Glycerin is one of the best-studied humectants there is. So the
    water-binding is largely glycerin’s job; the luxurious feel is silicone,
    squalane and esters; and the hyaluronic acid the product is named around is a
    minor humectant in the back half.

    Position Ingredient What it does
    2 Saccharomyces/Rice Ferment Filtrate Fermented rice extract; the leading named botanical, genuinely near the top
    3 Glycerin Humectant; the main water-binding workhorse
    5 Dimethicone Silicone occlusive; the smooth, non-greasy film and skin feel
    6 Squalane Lightweight emollient marketed as “biomimetic squalane”
    25 Sodium Hyaluronate The marketed hero; a humectant, in the ≤1% block

    None of this makes it a bad moisturizer. Squalane is a lovely emollient,
    glycerin is excellent, and the cream feels expensive for a reason. The point is
    narrower and fairer: it is a silicone-squalane-and-ester cream with a
    rice-ferment lead and a small amount of hyaluronic acid, sold as a hyaluronic
    acid cream. If you bought it for the HA, most of what your $74 buys is the feel,
    not the hero.

    Nib runs a pencil down a long numbered ingredient list and stops near the top beside two large drums marked Dimethicone and Squalane, far bigger than a tiny droplet much further down.
    Positions five and six, silicone and squalane. This is where the rich, dewy feel really comes from.

    Does the low position mean the hyaluronic acid does nothing?

    No — and this is where being fair matters more than being harsh.
    Hyaluronic acid is effective at strikingly low concentrations, so “it is at
    one percent or less” is not the same as “it is a token.” In a
    2011 randomized controlled trial, formulations containing just 0.1% sodium
    hyaluronate across a range of molecular weights produced statistically
    significant improvements in skin hydration and elasticity versus placebo
    (Efficacy evaluation
    of a topical hyaluronic acid serum, and the broader HA literature summarised in
    PMC    ). A 2025 review of topical HA makes the same point and adds a caveat that
    cuts against overstating any concentration figure: with hyaluronic acid,
    molecular weight matters at least as much as the raw percentage
    (Hyaluronic acid in
    topical applications: the various forms and their efficacy    , 2025). Tatcha
    discloses neither the percentage nor the molecular weight.

    So the criticism here is not “there is too little HA to do
    anything.” A tenth of a percent can measurably do something. The honest
    criticism is about naming and price. The product is marketed around hyaluronic
    acid and priced at $74, while the ingredient itself is a supporting humectant
    below nine botanicals — and the same effective dose of HA is table stakes
    in $12 serums, not an expensive proprietary innovation. For reference, our own
    earlier reading found the same hero-ingredient trick in a $17 drugstore gel,
    where HA landed at position fifteen; here it is ten places lower in a cream that
    costs four times as much.

    If what you actually want is a moisturizer where the things named on the front
    are the things doing the work, that is a different kind of product. We make a
    beef-tallow one — here is
    the
    Evil Goods Whipped Tallow & Manuka Honey Moisturizer    , whose short label
    reads tallow, Manuka honey, olive oil and vitamin E, with no under-one-percent
    tail to squint at. Full disclosure: Ingredient Desk is published by the team
    behind Evil Goods, so read that link knowing it is ours. The comparison we are
    drawing is about label transparency, not a claim that one cream out-performs the
    other — that would need a study neither product has.

    Nib peers through the magnifying glass at a single tiny droplet marked HA at position twenty-five, sitting below a long row of nine little labelled botanical sprigs.
    The hero ingredient at twenty-five, tucked in below nine botanical extracts in the under-one-percent block.

    What is the fragrance angle at the bottom of the list?

    The tail of this label carries a fragrance cluster worth a careful reader’s
    attention. The formula declares Parfum/Fragrance at position thirty-eight, and
    then three individually named fragrance components lower down: Citral (#41),
    Limonene (#42) and Linalool (#43). Under EU cosmetics rules, those three have to
    be declared by name when present above 10 ppm in a leave-on product, which
    is why they appear as their own INCI entries rather than hiding inside
    “fragrance.”

    All three are recognised contact allergens, and it is fair to say so with the
    strength of the evidence behind it. The EU’s Scientific Committee on
    Consumer Safety classifies citral as an established contact allergen and treats
    oxidised limonene and linalool as allergens of high concern
    (SCCS
    Opinion on Fragrance Allergens    ). Linalool hydroperoxides — the oxidised
    form that builds up as the ingredient ages on the shelf — showed a
    10.1% positive patch-test rate in the 2021–2022 North American Contact
    Dermatitis Group cycle, which puts them among the more prevalent fragrance
    sensitizers in current data
    (a
    plain-language summary of that patch-test data    ).

    Read this the right way. The presence of citral, limonene and linalool on the
    label does not mean this cream will irritate your skin, and it does not mean it
    harmed anyone — the amounts are undisclosed and most people use fragranced
    products without trouble. What it means is that a cream positioned as gentle and
    luxurious is a fragranced product carrying three declared allergens, and if your
    skin reacts to scented skincare, that is information you want before spending $74.
    The label tells you; the front of the jar does not.

    Nib holds a tiny stoppered vial marked with three fragrance symbols up to the light, eyebrows raised, next to an open reference book.
    Down at the very bottom sit citral, limonene and linalool, three fragrance allergens the desk always reads.

    How do you read any ingredient list this way yourself?

    The method is not special to Tatcha and needs no chemistry background. Find
    the actual ingredient list — the long one, not the “key
    ingredients” callout the brand writes. Ingredients are listed in descending
    order of weight down to about the one-percent mark, so where a name sits is a
    rough proxy for how much is in the jar. Then find the ingredient the front of the
    package is selling and see how far down it is.

    A useful shortcut for the tail: once you hit a long run of botanical extracts
    listed one after another, you are almost certainly in the under-one-percent
    block, because that is where those trace actives live. Anything from there down
    — here, all nine botanicals, the hyaluronic acid, the gold, the vitamin E,
    the fragrance allergens — is present at roughly a percent or less each. A
    “gold” ingredient (#26) is a good tell: there is no established
    evidence for a cosmetic benefit from topical gold at the trace levels a face
    cream delivers, so its main job on the label is marketing.

    If the hero is in the top few names, the marketing and the formula agree. If
    it is twenty-fifth, below nine botanicals, they do not, and something cheaper and
    unnamed on the front is usually doing the work the label credits to the hero. The
    label is the one part of the product the marketing department does not get to
    rewrite. Read it, and it will usually tell you what you are actually buying.

    FAQ

    Where is the hyaluronic acid in Tatcha The Dewy Skin Cream?
    On the list read from tatcha.com on 5 September 2026, sodium hyaluronate is the
    twenty-fifth name on a list of forty-seven, sitting below nine botanical extracts
    in the part of the label where everything is present at one percent or less. The
    position is verifiable; the exact percentage is not disclosed.

    What is actually building the cream if not the HA?
    A rice ferment leads at position two; then dimethicone (#5, a silicone) and
    squalane (#6) with six emollient esters (#7–#12) build the rich, dewy feel.
    Glycerin at #3 is the main humectant. Hyaluronic acid at #25 is a minor
    supporting humectant.

    Does the low position mean there is too little HA to work?
    No. Hyaluronic acid is effective at very low levels — a 2011 randomized
    trial found measurable hydration and elasticity gains from 0.1% sodium
    hyaluronate, and molecular weight matters as much as concentration. The fair
    criticism is that the cream is named and priced on HA while the ingredient is a
    supporting player below nine botanicals.

    Should I worry about the citral, limonene and linalool?
    They are declared fragrance allergens, present above 10 ppm by the EU rule that
    forces them onto the label individually. The SCCS treats citral as an established
    allergen and oxidised limonene and linalool as high-concern ones. Their presence
    is information for anyone whose skin reacts to scented products; it is not proof
    the cream will irritate you, and the amounts are undisclosed.

    Is the hyaluronic acid position the same on the mini and the
    refillable version?
    The two major-retailer listings we checked — the full-size and the 10 ml
    mini — carry an identical ingredient string, so the position holds across sizes.
    Tatcha notes the formula is subject to change, so confirm against the packaging
    on the jar you buy.

    Nib sets down the magnifying glass, closes a little notebook titled Ingredient Desk, and gives a small satisfied nod beside the fully-read lavender label.
    Label read, front claim checked against the back. The HA is real. The cream you feel is silicone, squalane and esters.

  • Neutrogena Hydro Boost: Hyaluronic Acid Is the 15th Ingredient

    Neutrogena Hydro Boost is sold as a
    “Hyaluronic Acid Water Gel,” but on the original fragranced
    formula’s ingredient list, sodium hyaluronate — the INCI name for
    hyaluronic acid — sits fifteenth out of twenty, after a preservative that
    the EU caps at 1%. The gel you feel is built from silicone: dimethicone is the
    second ingredient and a dimethicone crosspolymer the fourth. The HA is really in
    there, and hyaluronic acid works even at very low levels, but the formula is a
    silicone-and-glycerin gel with the hero ingredient near the bottom of the
    list.

    Neutrogena Hydro Boost Water Gel is one of the best-selling drugstore
    moisturizers in America — stocked prominently at every major US drugstore and
    beauty retailer, with thousands of reviews at each. Its whole identity is hyaluronic
    acid. The name is “Hyaluronic Acid Water Gel.” The marketing copy
    leads with it: “Found naturally in your skin, Hyaluronic Acid hydrates by
    binding to water.” That is the front of the jar.

    The back of the jar — the actual ingredient list, ordered roughly by
    weight down to about the 1% mark — tells a story you can check yourself in
    about a minute. We read the whole label. Here is where everything actually
    sits.

    Where does the hyaluronic acid actually land on the label?

    Here is the full list, quoted verbatim from the product page at
    Ulta.com,
    read on 1 September 2026 (HTTP 200). This is the original fragranced Water Gel
    — the bestselling variant. The same twenty names, in the same order, appear
    on the ingredients as listed at CVS.com (product page, read via search index,
    1 September 2026):

    Water, Dimethicone, Glycerin, Dimethicone/Vinyl Dimethicone Crosspolymer, Phenoxyethanol, Polyacrylamide, Cetearyl Olivate, Sorbitan Olivate, Dimethiconol, C13-14 Isoparaffin, Dimethicone Crosspolymer, Chlorphenesin, Carbomer, Laureth-7, Sodium Hyaluronate, Ethylhexylglycerin, Fragrance, C12-14 Pareth-12, Sodium Hydroxide, Blue 1.

    Sodium Hyaluronate is the fifteenth name on that list of twenty. It appears
    after water, two silicones, glycerin, a preservative, a film-forming polymer, two
    emulsifiers, more silicone, a solvent, another silicone, a second preservative, a
    thickener and an emulsifier. On a label ordered by weight, the marketed hero
    ingredient in fifteenth place is near the bottom of the formula, not the top.

    One position tells you more than the rest. Sodium hyaluronate (#15) sits
    after phenoxyethanol (#5), a preservative the EU restricts to a maximum
    of 1% in all cosmetics (EU Annex V). If the preservative is present at 1% or
    less, everything listed below it is present at 1% or less too. So the HA is
    almost certainly under 1% of the jar. We can’t read an exact percentage off
    a label — Neutrogena has said in a retailer product Q&A that the
    percentage of each ingredient is proprietary — and the EU cap is not a US
    law, but US formulators routinely use phenoxyethanol at or below 1% as well. The
    position and the preservative both point the same way.

    Marketed hero
    Hyaluronic Acid (sodium hyaluronate)
    Position on label
    Fifteenth of twenty, after the preservative
    Building the gel
    Dimethicone (#2) and a dimethicone crosspolymer (#4)
    Source of list
    Ulta.com, read 1 Sep 2026 (HTTP 200); corroborated at CVS.com
    Nib the small round pencil-sketch creature holds a magnifying glass up to a squat blue jar labelled Hyaluronic Acid Water Gel, squinting at the tiny type on the back rather than the big words on the front.
    The front of the jar sells hyaluronic acid. Nib turns it over to find where the HA actually lands.

    So what is actually building the gel you feel?

    Two silicones near the top of the list are doing the work your fingers read as
    “water gel,” and neither is on the front of the jar.

    Dimethicone sits at position two. It is a silicone, and the
    Cosmetic Ingredient Review classifies it as a “skin-conditioning
    agent—occlusive” and antifoaming agent
    (CIR
    Final Report, Methicones, March 2022    ). It provides a smooth, non-greasy film
    and slows water loss from the skin surface. It is the primary skin-feel
    ingredient in the formula — the second-largest thing in the jar — and
    it is not hyaluronic acid.

    Dimethicone/Vinyl Dimethicone Crosspolymer sits at position four.
    It is a silicone elastomer. The CIR lists dimethicone crosspolymers as “film
    formers, skin-conditioning agents—emollient, slip modifiers… viscosity
    increasing agents”
    (CIR
    Final Report, Dimethicone Crosspolymers, September 2012    ). Translated: this is
    the ingredient that turns a liquid into that springy, bouncy gel texture. There
    is a third silicone gel-former, Dimethicone Crosspolymer, at position eleven.

    The gel you press into your skin is a silicone elastomer gel. The
    “water” in “water gel” is real — water is the first
    ingredient — but the springy feel is silicone, and the actual humectant
    drawing water toward your skin is glycerin at position three, not the HA at
    fifteen.

    Position Ingredient What it does
    2 Dimethicone Silicone occlusive; the smooth, non-greasy film and skin feel
    3 Glycerin Humectant; the actual water-binding workhorse here
    4 Dimethicone/Vinyl Dimethicone Crosspolymer Silicone elastomer; builds the springy gel texture
    6 Polyacrylamide Film-forming polymer; carries a residual-monomer flag (below)
    15 Sodium Hyaluronate The marketed hero; a humectant, low on the list

    None of this makes it a bad moisturizer. Dimethicone is a genuinely good
    skin-feel and occlusive ingredient, glycerin is one of the best-studied humectants
    there is, and the product feels pleasant for a reason. The point is narrower and
    fairer: it is a silicone-and-glycerin gel with a small amount of hyaluronic acid,
    sold as a hyaluronic acid gel. If you bought it for the HA, you mostly bought the
    dimethicone.

    Nib runs a pencil down a numbered ingredient list and stops near the top at two large drums marked Dimethicone and a crosspolymer, far bigger than a small droplet lower down.
    Positions two and four, both silicone. This is where the gel feel actually comes from.

    What is polyacrylamide doing at position six?

    Nine places above the hyaluronic acid, at position six, is polyacrylamide
    — a film-forming and thickening polymer. It is common, and it is legal in
    the United States. It is worth a sentence for one reason, and it is a regulatory
    note, not an alarm.

    Polyacrylamide is made from acrylamide monomer, and a tiny amount of
    unreacted monomer can remain in the finished polymer. The CIR’s safety
    assessment concluded polyacrylamide is safe as used when residual acrylamide is
    kept at or below 5 ppm in the finished formula, and it notes plainly that
    acrylamide itself is “a demonstrated neurotoxin in humans and a carcinogen
    in animal tests” — while concluding that the levels attainable from
    cosmetic use at those limits do not reach that threshold
    (CIR
    Polyacrylamide re-review, 2022    ). The EU is stricter, capping residual
    acrylamide at 0.1 ppm for leave-on products. The polymer itself does not
    penetrate skin; the residual monomer can.

    We are not going to tell you this product is dangerous — that is not
    what the CIR found and it is not ours to say. What we can tell you is what the
    regulators wrote and where the limits sit, and let you read the assessment
    yourself. No public test data for the actual monomer level in this specific
    product was available to us.

    Nib peers through the magnifying glass at a single tiny droplet marked HA at position fifteen, sitting just below a small bottle labelled Phenoxyethanol.
    The hero ingredient at fifteen, tucked in below a preservative Europe caps at one percent.

    Does the low position mean the HA does nothing?

    No — and this is where being fair matters more than being harsh.
    Hyaluronic acid is effective at strikingly low concentrations. In a 60-day
    randomized controlled trial, formulations containing just 0.1% sodium hyaluronate
    across a range of molecular weights produced statistically significant
    improvements in skin hydration and elasticity versus placebo
    (Pavicic et al., J Drugs
    Dermatol, 2011    ). So the criticism here is not “there’s
    too little HA to do anything.” A tenth of a percent can measurably do
    something.

    The honest criticism is about naming and positioning. The product is named
    for, priced on, and marketed around hyaluronic acid, while the formula that
    actually determines how it feels and behaves is led by silicone and glycerin,
    with HA as a minor component near the bottom of the list. You’re paying a
    hero-ingredient price for a supporting-ingredient amount — and mostly
    paying for dimethicone.

    Two more label notes for the careful reader. Fragrance sits at position
    seventeen; fragrance is a known contact-sensitization risk for some people, so if
    you react to scented products, this is a fragranced formula. And the springy
    blue-green tint comes from Blue 1 at the very bottom, position twenty —
    purely cosmetic. There is a separate fragrance-free Hydro Boost Gel Cream
    with an entirely different formula, in which sodium hyaluronate sits far
    higher, at position six, alongside amino acids and sodium PCA. That is a
    different product with a different story; today’s reading is the original
    fragranced Water Gel only.

    Nib taps the pencil against an open reference book, next to a small vial marked 0.1% with a checkmark, nodding thoughtfully.
    A fair note from the desk: hyaluronic acid does real work even at a tenth of a percent.

    How do you read any ingredient list this way yourself?

    The method here is not special to Neutrogena, and you do not need a chemistry
    background for it. Find the actual ingredient list — the long one, not the
    “key ingredients” callout the brand writes. Ingredients are listed in
    descending order of weight down to about the 1% mark, so where a name sits is a
    rough proxy for how much is in the jar. Then find the ingredient the front of the
    package is selling and see how far down it is. A useful shortcut: locate the
    preservative — here, phenoxyethanol, which the EU caps at 1% — and
    anything below it is present at roughly a percent or less.

    If the hero is in the top few names, the marketing and the formula agree. If
    it is fifteenth, below the preservative, they do not, and something cheaper is
    usually doing the work the label credits to the hero. If what you actually want is
    a moisturizer where the thing on the front is the thing doing the work, that is a
    different kind of product — we make a beef-tallow one, and here is exactly
    what a tallow moisturizer is and how it differs:
    what’s in a
    tallow moisturizer    . Full disclosure: Ingredient Desk is published by the team
    behind Evil Goods, so read that knowing it is ours — but it is the honest
    next question after this one.

    FAQ

    Where is the hyaluronic acid in Neutrogena Hydro Boost Water Gel?
    On the original fragranced formula, sodium hyaluronate is the fifteenth of twenty
    ingredients, listed after phenoxyethanol — a preservative the EU caps at
    1%. On a label ordered by weight, that places the HA near the bottom, most likely
    under 1%.

    What is actually building the gel in Hydro Boost?
    Silicone. Dimethicone is the second ingredient and a dimethicone/vinyl dimethicone
    crosspolymer is the fourth; a third silicone crosspolymer sits at eleven. The
    springy “water gel” texture is a silicone elastomer gel. Glycerin at
    position three is the main humectant.

    Does the low position mean there is too little HA to work?
    No. Hyaluronic acid is effective at very low levels — a 2011 randomized
    trial found measurable hydration and elasticity gains from 0.1% sodium
    hyaluronate. The fair criticism is that the product is named and priced on HA
    while the formula is led by silicone and glycerin.

    What about the polyacrylamide at position six?
    It is a film-forming polymer. The CIR found it safe as used when residual
    acrylamide monomer is kept at or below 5 ppm; the EU limit is 0.1 ppm for leave-on
    products. We link the CIR assessment so you can read the finding yourself. No
    public test data for this specific product’s monomer level was available.

    Is the fragrance-free Hydro Boost the same formula?
    No. The fragrance-free Gel Cream variant has a different formula in
    which sodium hyaluronate sits much higher, at position six, alongside amino acids
    and sodium PCA. This analysis is only about the original fragranced Water Gel.

    Nib sets down the magnifying glass, closes a little notebook titled Ingredient Desk, and gives a small satisfied nod beside the fully-read blue label.
    Label read, front claim checked against the back. The HA is real. The gel you feel is mostly silicone.