Tag: copper peptides

Drunk Elephant Protini: The Peptides Start at Ingredient #10

Drunk Elephant Protini is sold as a “polypeptide” firming moisturizer with a nine-peptide complex. On the label, the first peptide — sh-Oligopeptide-1 — appears at ingredient number ten, after water, an emollient, glycerin, three emulsifiers, a seed oil, a ferment and a botanical extract. The copper compound in the formula is Copper Palmitoyl Heptapeptide-14, which is not the same molecule as copper tripeptide-1 (GHK-Cu), the copper peptide most of the published research is actually about.

We quote ingredient lists so you can check them yourself. Here is Protini’s, verbatim from the Drunk Elephant product page (drunkelephant.com, fetched 13 October 2026, HTTP 200), and corroborated word-for-word by a major US retailer’s listing for the same product (SKU P427421). Ingredient Desk is published by the team behind Evil Goods, who make a copper peptide serum of their own; we say so here, in the footer, and anywhere an Evil Goods product comes up.

Water/Aqua/Eau, Dicaprylyl Carbonate, Glycerin, Cetearyl Alcohol, Cetearyl Olivate, Sorbitan Olivate, Sclerocarya Birrea Seed Oil, Bacillus/Folic Acid Ferment Extract, Nymphaea Alba Root Extract, sh-Oligopeptide-1, sh-Oligopeptide-2, sh-Polypeptide-1, sh-Polypeptide-9, sh-Polypeptide-11, Copper Palmitoyl Heptapeptide-14, Heptapeptide-15 Palmitate, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-1, Alanine, Arginine, Glycine, Histidine, Isoleucine, Phenylalanine, Proline, Serine, Threonine, Valine, Acetyl Glutamine, Coconut Alkanes, Coco-Caprylate/Caprate, Sodium Hyaluronate, Aspartic Acid, Linoleic Acid, Linolenic Acid, Lecithin, Butylene Glycol, Polyvinyl Alcohol, Sodium Lactate, Sodium PCA, PCA, Sorbitan Isostearate, Carbomer, Polysorbate 20, Polysorbate 60, Lactic Acid/Glycolic Acid Copolymer, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Xanthan Gum, Isomalt, 1,2-Hexanediol, Caprylyl Glycol, Chlorphenesin, Phenoxyethanol, Tocopherol, Sodium Benzoate, Phenylpropanol, Glyceryl Caprylate, Symphytum Officinale Callus Culture Extract.

What is actually in Drunk Elephant Protini?

The front of the jar leads with peptides. The first nine ingredients are not peptides. In descending order of how much is in the jar, they are:

Water — the solvent almost every water-based cream is built on.
Dicaprylyl Carbonate — a light emollient ester, the kind of silicone alternative that gives a cream its slip.
Glycerin — a humectant, one of the most reliable and least expensive moisturizing agents there is.
Cetearyl Alcohol — a fatty alcohol that thickens and helps emulsify.
Cetearyl Olivate and Sorbitan Olivate (5 and 6) — a pair of olive-derived emulsifiers that hold oil and water together.
Sclerocarya Birrea Seed Oil — marula oil, a genuinely nice emollient with antioxidants.
Bacillus/Folic Acid Ferment Extract — a fermented folic acid ingredient Drunk Elephant markets as a hero.
Nymphaea Alba Root Extract — pygmy waterlily extract, the brand’s “stem cell” botanical.

None of this is a criticism. It is a perfectly competent moisturizer base — marula oil and a folic-acid ferment are more interesting than most. The point is only that these eight ingredients, not the peptides, make up the bulk of what you are applying. That is what “descending order of predominance” means, and it is worth knowing before we get to the part the name is selling.

Nib, a small round pencil-sketch creature, holds a magnifying glass up to a tall jar labelled Polypeptide, squinting at the fine print on the back. — Nib reads the back of the jar, not the front. The front says polypeptide; the back has fifty-eight lines to get through first.

Where do the peptides actually appear?

US cosmetic labels have to list ingredients in descending order of how much is present, down to one percent. Below one percent, a brand can list things in any order it likes. That rule is set out in 21 CFR 701.3 — subsection (a) requires descending order; subsection (f)(2) is the under-one-percent exemption. So ingredient position is not an exact percentage, but above that one-percent line it is a real signal of how much is in the jar.

Here is where Protini’s nine peptides sit:

Position	INCI name	What it is
10	sh-Oligopeptide-1	growth-factor-type peptide (EGF-style) — the first peptide in the list
11	sh-Oligopeptide-2	growth-factor-type peptide (IGF-1-style)
12	sh-Polypeptide-1	growth-factor-type peptide (bFGF-style)
13	sh-Polypeptide-9	growth-factor-type peptide
14	sh-Polypeptide-11	growth-factor-type peptide
15	Copper Palmitoyl Heptapeptide-14	the copper peptide — a seven-amino-acid chain with a fatty-acid tail and copper
16	Heptapeptide-15 Palmitate	signal peptide
17	Palmitoyl Tetrapeptide-7	signal peptide (often sold as Rigin)
18	Palmitoyl Tripeptide-1	signal peptide — a palmitoylated GHK chain, without the copper

The peptides occupy positions ten through eighteen. The one directly after them, at nineteen, is alanine — an individual amino acid. On most labels, the appearance of free amino acids marks the point where you have crossed below the one-percent line. The whole nine-peptide complex, in other words, almost certainly lives in the slice of the formula that sits under one percent combined. That is normal for peptides; they work at low concentrations. It is simply not what “polypeptide cream” implies to someone reading the front.

Nib stands at the foot of a long numbered ladder of ingredients, pencil pointing up at rung number ten where the first peptide sits. — The first peptide waits nine rungs up the list. Everything below it is the moisturizer most moisturizers already are.

Is the copper peptide in Protini the one the research is about?

At position fifteen is Copper Palmitoyl Heptapeptide-14. When most people say “copper peptide” they mean something else: copper tripeptide-1, also written GHK-Cu (CAS 89030-95-5), a three-amino-acid chain bound to copper. GHK-Cu is the compound with the long history — a 2025 review of tripeptides in skin calls it one of the most-used peptides in the cosmetic industry and names copper tripeptide-1 as its INCI identity. Protini does not contain copper tripeptide-1. It contains a different, palmitoylated copper peptide.

That difference matters for how you read the research. A 2026 systematic review of GHK-Cu describes forty-plus years of pre-clinical work, then adds the honest part: the clinical evidence “remains thin and fragmented,” most trials are small, and the findings have not been validated in large human studies. So even for the best-studied copper peptide, the human evidence is promising rather than settled. For Copper Palmitoyl Heptapeptide-14 specifically, the published literature is thinner still — which is not the same as saying it does nothing, only that you should not read GHK-Cu’s forty-year file as if it belonged to this molecule. If you want the plain-English version of what a copper peptide even is, we wrote one (that is our site, Evil Goods).

Nib holds up two labelled test tubes side by side, one marked Copper Tripeptide-1 and one marked Copper Palmitoyl Heptapeptide-14, looking from one to the other. — Two copper peptides, two different names. Nib checks which one the research is actually about.

What is everything below position eighteen?

The back half of the list is mostly supporting cast. Positions nineteen through twenty-nine are individual amino acids — alanine, arginine, glycine and the rest — which act as natural moisturizing factors and as the building blocks peptides are made from, but are not themselves peptides. Sodium hyaluronate, the much-hyped hydrating ingredient, sits all the way down at position thirty-two, well below that one-percent line.

Two preservatives sit near the very bottom: chlorphenesin at position fifty-two and phenoxyethanol at fifty-three. The Cosmetic Ingredient Review panel concluded chlorphenesin is safe at present practices of use and concentration. Alongside that, the patch-test literature carries a handful of case reports of allergic contact dermatitis from products containing it — the CIR report itself cites several. These are rare reactions at low rates, not a reason to avoid the ingredient, but worth knowing if your skin has flagged a preservative before. That is the honest shape of it: broadly safe by the review body’s assessment, with a small sensitization signal in the case reports.

Nib sits cross-legged at the bottom of the ingredient list reading a tiny footnote next to the word Chlorphenesin, a stack of case-report papers beside him. — Down at position fifty-two, Nib stops to read the footnotes a few people have left on the preservative.

So is Drunk Elephant Protini worth it?

If you like how it feels and it suits your skin, the position of an ingredient does not undo that — a good emollient base is a real thing to buy. What the label does tell you is that you are paying a peptide-cream price for a cream whose peptides sit below one percent, built on a base you could find in far cheaper moisturizers. Whether that trade is worth it is a judgement about your own skin and budget, not something the front of the jar settles for you. If you specifically want copper peptides, it is worth knowing which copper peptide you are buying and how thin the human evidence still is for any of them — including the one in our own Copper Peptide Blue Honey Serum, which uses copper tripeptide-1.

FAQ

Where do the peptides start in Drunk Elephant Protini?: At ingredient number ten, sh-Oligopeptide-1. The first nine ingredients are water, an emollient ester, glycerin, three emulsifiers, marula seed oil, a folic-acid ferment and a waterlily extract.
What is sh-Oligopeptide-1?: A synthetic growth-factor-style peptide (an EGF analog) used in skincare at low concentrations. It is the first of Protini’s nine-peptide complex.
Is the copper peptide in Protini GHK-Cu?: No. Protini contains Copper Palmitoyl Heptapeptide-14. GHK-Cu is copper tripeptide-1, a different molecule and the one most of the published research is conducted on.
What does ingredient order tell you about a moisturizer?: US rules require listing in descending order of amount down to one percent (21 CFR 701.3). So an ingredient’s position is a real signal of how much is present — above the one-percent line, at least. Below it, order no longer reflects quantity.
Is chlorphenesin safe?: The Cosmetic Ingredient Review panel concluded it is safe at the concentrations cosmetics use. A small number of allergic contact dermatitis case reports exist in the patch-test literature, which is a sensitization note rather than a general warning.

Nib closes a thick notebook, magnifying glass tucked under one arm, giving a small satisfied nod next to the finished ingredient list. — The label told the whole story. It just told it in order of how much is in the jar.

October 13, 2026

Drunk Elephant Protini: The 9 Peptides Are #10–18. Then Come 10 Amino Acids.

Drunk Elephant Protini is named for polypeptides and
marketed on “nine signal peptides.” On the ingredient list, those nine
peptides sit together at positions #10 through #18 — genuinely mid-list, not
buried at the bottom. The catch is not where they sit. It is what comes right
after them: ten individual amino acids at positions #19 through #28, which the
brand groups under the same peptide-complex language. An amino acid is not a
peptide; it is what a peptide is made of. Those are different things.

Most of the labels we read here end with the marketed hero hiding somewhere
below the preservatives — retinol at #26, hyaluronic acid at #25. Protini is
the opposite case, and that is exactly what makes it interesting. Drunk Elephant
put its nine peptides where you would hope to find them, in one tidy block near
the top of the list. So the usual gotcha does not apply. The interesting
questions are different: what are those nine peptides, does the research support
what they are named for, and what is that long run of ingredients that follows?

Nib, a small round pencil-sketch creature, holds a magnifying glass to a jar of moisturizer whose front reads Polypeptide, then peers past it at a long ingredient list running down the side. — Named for polypeptides. Nib turns the jar around to find where the nine actually live.

Where do the nine signal peptides actually sit?

Here is the full list, quoted verbatim as it appears on the product page at
Ulta.com,
fetched 16 September 2026 (item #2588434). The list on the product’s page at
a second major beauty retailer, read the same week, is identical word for word,
down to the spacing.

Water/Aqua/Eau, Dicaprylyl Carbonate, Glycerin, Cetearyl Alcohol, Cetearyl Olivate, Sorbitan Olivate, Sclerocarya Birrea Seed Oil, Bacillus/ Folic Acid Ferment Filtrate Extract, Nymphaea Alba Root Extract, sh-Oligopeptide-1, sh-Oligopeptide-2, sh-Polypeptide-1, sh-Polypeptide-9, sh-Polypeptide-11, Copper Palmitoyl Heptapeptide-14, Heptapeptide-15 Palmitate, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-1, Alanine, Arginine, Glycine, Histidine, Isoleucine, Phenylalanine, Proline, Serine, Threonine, Valine, Acetyl Glutamine, Coconut Alkanes, Coco-Caprylate/Caprate, Sodium Hyaluronate, Aspartic Acid, Linoleic Acid, Linolenic Acid, Lecithin, Butylene Glycol, Polyvinyl Alcohol, Sodium Lactate, Sodium PCA, PCA, Sorbitan Isostearate, Carbomer, Polysorbate 20, Polysorbate 60, Lactic Acid/Glycolic Acid Copolymer, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Xanthan Gum, Isomalt, 1,2-Hexanediol, Caprylyl Glycol, Chlorphenesin, Phenoxyethanol, Tocopherol, Sodium Benzoate, Phenylpropanol, Glyceryl Caprylate, Symphytum Officinale Callus Culture Extract.

The nine peptides the product is named after run from
sh-Oligopeptide-1 at position #10 to
Palmitoyl Tripeptide-1 at position #18 — nine names in an
unbroken block. Above them are eight ingredients that are none of them a peptide:
water, an emollient ester, glycerin, two fatty-alcohol emulsifiers, a pair of
olive-derived emulsifiers, marula oil, and two ferment extracts. On an ingredient
list, where things are ordered roughly by weight down to about the 1% mark, that
puts the peptide block mid-list rather than at the top. Not hidden, not headline.
Somewhere in the honest middle.

Marketed hero: Nine “signal peptides”
Position on label: #10 through #18, one contiguous block
What sits above them: Eight ingredients, none a peptide
Ingredients on the label: Fifty-eight
Source of list: Ulta.com (fetched 16 Sep 2026) and a second major retailer, same week — identical

So this is not a “the hero is at #26” story. Credit where it is
due: the peptides are real and reasonably placed. The story is what they are, and
whether the research backs the word on the front of the jar.

Nib runs a pencil down a numbered column and rests it on a tight block of nine little peptide tags clustered together between positions ten and eighteen. — The nine signal peptides sit together at positions ten through eighteen – mid-list, not buried.

Do the peptides do what the name promises?

Five of the nine — the sh-Oligopeptide and sh-Polypeptide entries at
positions #10 through #14 — are cosmetic-grade analogs of growth factors.
sh-Oligopeptide-1, at #10, is the INCI name for a synthetic epidermal growth
factor analog. This is where the evidence gets thin, and it is worth being
precise about how thin.

A 2023 review in Cutaneous and Ocular Toxicology looked specifically
at topical sh-oligopeptide-1 and concluded that its preclinical bioactivity as a
functional growth factor has not been demonstrated, meaning clinical trials that
treat it as equivalent to functional recombinant growth factor may not rest on a
valid foundation (Martínez-Carpio,
2023, PubMed). That is an evidence-quality critique, not a safety alarm: the
question is whether the molecule does the job it is named for, not whether it is
harmful.

Zoom out to the whole category and the picture is consistent. A systematic
review of topical growth-factor preparations — 33 studies, nine randomized
controlled trials, 1,180 participants — found modest improvements in
texture and fine lines versus baseline, with three of the comparative RCTs showing
no statistically significant difference between treatments, and the studies
limited by heterogeneity and weak placebo controls
(Quinlan et al.,
Journal of Cosmetic Dermatology, 2023, PubMed). Modest and inconsistent is
the honest reading — not dismissal, not endorsement.

The last two of the nine are a different, better story. Palmitoyl Tetrapeptide-7
and Palmitoyl Tripeptide-1, at #17 and #18, are the two peptides marketed together
as Matrixyl 3000. A 45-person randomized, placebo-controlled study reported around
52% wrinkle reduction over twelve weeks — better evidence than the growth
factor peptides above them, though the trial was manufacturer-commissioned and the
two peptides are always tested as a pair, so the data cannot separate them
(peptidings.com,
2026). So within the nine, the picture is mixed: the two at the bottom of the
block have the most credible support, and the five growth-factor analogs above
them the least.

What is that long run of ingredients after the peptides?

This is the part of the label worth reading slowly. Directly below the nine
peptides, positions #19 through #28 are ten individual amino acids in a row:
alanine, arginine, glycine, histidine, isoleucine, phenylalanine, proline, serine,
threonine and valine, with acetyl glutamine at #29. Drunk Elephant groups these
under the same “Signal Peptide Complex” language it uses for the
peptides — but they are not peptides.

Nib stands beside a neat row of ten identical amino-acid blocks, counting them on stubby fingers, with a small sign above the row reading not peptides. — Then ten single amino acids in a row. An amino acid is what a peptide is made of, not a peptide.

The distinction matters and it is not pedantry. A peptide is two or more amino
acids joined by a peptide bond; that bond is what lets it act as a signal. A free
amino acid on its own is the raw material, not the assembled thing. The ten listed
here are among the cheapest commodity inputs in a cosmetic chemist’s cabinet,
and they do a real, modest job as surface humectants — they are Natural
Moisturizing Factor components, the same molecules your skin already uses to hold
water. That is fine. What is worth noticing is the effect on the label: the
peptide-and-amino-acid run stretches from position #10 all the way to #29, twenty
consecutive entries, which reads as a peptide powerhouse when read for length.
Ten of those twenty are single amino acids.

Label positions	What sits there	What the position implies
1–9	Water, emollients, emulsifiers, marula oil, two ferments	The base and texture — none of them a peptide
10–14	Five growth-factor analogs (sh-Oligo/Polypeptides)	Real peptides, mid-list; cosmetic bioactivity contested
15–16	Copper Palmitoyl Heptapeptide-14, Heptapeptide-15 Palmitate	Copper peptide plus a palmitoylated heptapeptide
17–18	Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-1	Matrixyl 3000 pair — best-studied of the nine
19–29	Ten amino acids + acetyl glutamine	Cheap humectants; not peptides
32	Sodium Hyaluronate	Below the whole peptide/amino-acid block

To be fair to the formula: none of this is deceptive on the label itself. The
list is honest and complete. It is the marketing language wrapped around it —
counting ten amino acids toward the impression of a peptide complex — that a
slow read pulls apart.

Nib holds up two copper coins side by side - one large and dented and labelled old, one small and shiny and labelled new - comparing them through the magnifying glass. — Two different copper peptides. The one here is the newer, less-studied cousin of the classic GHK-Cu.

Is the copper peptide in here the one with the research behind it?

At position #15 is Copper Palmitoyl Heptapeptide-14 — a copper-bearing
peptide. It is easy to assume this is the copper peptide with the long research
record. It is not. The copper peptide that has been studied since the 1970s is
Copper Tripeptide-1, better known as GHK-Cu. Copper Palmitoyl Heptapeptide-14 is a
newer, oil-soluble variant marketed on superior delivery, but with a much shorter
research history. GHK-Cu has been studied since the 1970s across many independent
papers; Copper Palmitoyl Heptapeptide-14 is the payload peptide in a newer
encapsulated delivery system (trade-named X50), and the evidence cited for it is a
single 30-person, 28-day manufacturer in-vivo test rather than a body of
independent work (INCIDecoder,
Copper Palmitoyl Heptapeptide-14). Neither is a bad ingredient. They are just
not the same molecule, and the older one is the one with the deeper record.

That contrast is worth flagging because we make a copper peptide product and it
uses the other one. Evil Goods’
Copper
Peptide Blue Honey Cream (our product) is built on Copper Tripeptide-1
— the GHK-Cu with the longer research record — alongside Manuka honey,
niacinamide and olive squalane. It is the same product format, a cream rather than
a serum, which makes it the fair thing to compare against here. In the interest of
the same scrutiny we just applied to Protini: Evil Goods does not publish a copper
concentration for ours, so we cannot tell you how much is in there any more than
Drunk Elephant can tell you about its nine peptides. Ingredient Desk is published
by the team behind Evil Goods, so read our comparisons knowing that.

What about the clinical study on the box, and the last ingredient?

Drunk Elephant’s marketing cites a study: 31 people, eight weeks, with
high percentages reporting improvement in tone, texture and hydration. A couple of
points are worth knowing before you weigh those numbers. It does not appear to be
peer-reviewed — no published paper turns up — and at 31 participants
with no control arm described, it is the kind of small brand-commissioned consumer
panel that is prone to the assessment bias these trials are known for. That does
not make it invalid; it simply cannot be verified, so treat the figures as
in-house marketing data rather than independent evidence.

One last note for the completists. The final ingredient on the list is Symphytum
Officinale Callus Culture Extract — comfrey, but specifically the plant-cell
callus culture form, which is produced to minimize the pyrrolizidine alkaloids
that are the usual concern with comfrey root and leaf. At the very bottom of a
long list, present in trace amount, in the callus form: there is nothing
here to raise an eyebrow at. We mention it only because a reader scanning the
label for “comfrey” deserves to know which comfrey it is.

So is it worth it?

On its own terms, Protini is a more honest label than most we read. The nine
peptides are real and mid-list, not buried. Two of them are genuinely
well-supported. The open questions are the five growth-factor analogs, whose
cosmetic activity the research does not yet back; the ten amino acids counted
toward the peptide story that are not peptides; and a copper peptide that is the
newer, less-studied cousin of the classic one. If you like the texture and go in
understanding that “nine signal peptides” is a mixed bag rather than
nine proven actives, it is a defensible cream at its price. Just read it as what
the label says, not what the front of the jar implies.

FAQ

Where do the peptides sit in Drunk Elephant Protini?
The nine marketed signal peptides run from position #10 to #18 in one block,
below eight ingredients that are not peptides. That is mid-list — not buried,
but not the top of the label either.

Are the amino acids in Protini the same as the peptides?
No. Positions #19 through #28 are ten individual amino acids. An amino acid is a
single building block; a peptide is two or more of them bonded together. Free
amino acids are cheap humectants, not the signal peptides the product is named
for.

Does Protini have the copper peptide with the most research?
Not the classic one. It contains Copper Palmitoyl Heptapeptide-14 at #15, a newer
oil-soluble variant, rather than Copper Tripeptide-1 (GHK-Cu), which has the
longer, decades-deep research record.

Is the clinical study on Protini reliable?
It is a 31-person, eight-week brand-commissioned panel with no control arm
described and no peer-reviewed publication found. Treat the percentages as
in-house marketing data rather than independent evidence.

Do topical growth-factor peptides actually work?
A systematic review of the category found modest, inconsistent improvements in
texture and fine lines, with weak placebo controls across studies. For the
cosmetic-grade EGF analog specifically, a 2023 review concluded its functional
bioactivity has not been demonstrated.

Nib closes a small notebook titled Ingredient Desk, sets the magnifying glass down beside the fully-read jar, and gives a satisfied nod. — Label read, top to bottom. The peptides are real and mid-list. What is unproven is what each one does.

September 16, 2026

The Ordinary “Buffet” + Copper Peptides 1%: Reading the Whole Label

On the label of The Ordinary’s
“Buffet” + Copper Peptides 1% — now sold as Multi-Peptide +
Copper Peptides 1% Serum — Copper Tripeptide-1 sits fourth, and the brand
states the concentration as 1%. The hero ingredient is genuinely near the top of
a very long list, and you are told how much is in there, which is more than most
copper peptide serums offer. The interesting question is not a buried active. It
is what the “Buffet” name implies about the six other peptides, and
where they actually land on the label.

Most of the “read the label” pieces we write here end with the
marketed hero sitting embarrassingly far down the ingredient list, somewhere
below the preservatives. This one does not, and that is exactly why it is worth
reading. The Ordinary put the copper peptide where a shopper would hope to find
it and told you the percentage. So the interesting question changes. When the
headline active is real and honestly placed, what does the rest of a
very long label tell you — and does the word
“Buffet” survive a slow read?

A quick note on the name. The product most people search for as
“Buffet + Copper Peptides 1%” has been rebranded to
“Multi-Peptide + Copper Peptides 1% Serum.” Same formula, new label.
We read every name on that label, top to bottom. Here is what it says.

Nib, a small round pencil-sketch creature, holds a magnifying glass up to a tall serum bottle whose label is crowded with tiny type, and starts reading from the very top. — Forty-nine names on one label. Nib starts at the top, where the copper peptide turns out to live.

Where does the copper peptide actually sit?

Here is the full list, quoted verbatim as it appears on the product listing at
INCIDecoder,
read 13 September 2026. The same list appears on the product’s US and
Canadian pages at a major beauty retailer, read the same day; all three sources
return an identical list.

Water, Glycerin, Lactococcus Ferment Lysate, Copper Tripeptide-1, Acetyl Hexapeptide-8, Pentapeptide-18, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-38, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Acetylarginyltryptophyl Diphenylglycine, Sodium Hyaluronate Crosspolymer, Sodium Hyaluronate, Allantoin, Glycine, Alanine, Serine, Valine, Isoleucine, Proline, Threonine, Histidine, Phenylalanine, Arginine, Aspartic Acid, Trehalose, Fructose, Glucose, Maltose, Urea, Sodium PCA, PCA, Sodium Lactate, Citric Acid, Hydroxypropyl Cyclodextrin, Sodium Chloride, Sodium Hydroxide, Butylene Glycol, Pentylene Glycol, Acacia Senegal Gum, Xanthan Gum, Carbomer, Polysorbate 20, Dimethyl Isosorbide, Sodium Benzoate, Caprylyl Glycol, Ethylhexylglycerin, Phenoxyethanol, Chlorphenesin.

Copper Tripeptide-1 — GHK-Cu, the molecule the whole product is named
after — is fourth on that list, right behind water,
glycerin and a postbiotic ferment. The label states 1%. On an ingredient list,
where things are ordered roughly by weight down to about the 1% mark, fourth
place with a disclosed percentage is close to the best a shopper can reasonably
hope for. The copper is there, near the top, and you are told how much. Credit
where it is due.

Marketed hero: Copper Tripeptide-1 (GHK-Cu)
Position on label: Fourth from the top
Concentration disclosed?: Yes — 1% stated on the label
Ingredients on the label: Forty-nine
Source of list: INCIDecoder plus the retailer’s US and Canadian pages, all read 13 Sep 2026 — identical

The reason copper peptides get talked about at all is that the biology is not
imaginary. In a review of the GHK-Cu literature, Pickart and Margolina describe
the peptide acting on fibroblasts and on skin remodelling pathways, with small
clinical studies reporting improved skin appearance over roughly twelve weeks of
use (Pickart &
Margolina, 2018). The evidence here is mostly small studies rather than
large trials, but it is a real base, and it is why the ingredient is worth
putting near the top of a label rather than a fingernail of it near the bottom.
So far, so good.

Nib runs a pencil down a long numbered list and taps position four, where a bright coin-shaped copper mark sits close to the top of the column. — Position four, one percent, printed in plain sight. For once the hero is not hiding at the bottom.

What does the “Buffet” of seven peptides look like on the label?

The name promises a spread. The label delivers seven peptide technologies, and
that part is true — but look at where six of them fall. Below the 1%
Copper Tripeptide-1 at position four sit Acetyl Hexapeptide-8, Pentapeptide-18,
Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-38, and
Dipeptide Diaminobutyroyl Benzylamide Diacetate — the peptides marketed
elsewhere as Matrixyl, SYN-AKE and Argireline-family complexes. They occupy
positions five through eleven. By their place on the label, each is present at
less than the 1% copper peptide above them.

How much less? The label cannot tell you exactly, and neither can we. What we
can say is that the Cosmetic Ingredient Review Expert Panel, in its published
safety assessment of these exact peptides, surveyed how the industry actually
uses them and recorded typical use concentrations well below 10 parts per million
— that is, under 0.001% — for ingredients like Palmitoyl Tripeptide-1
and Copper Tripeptide-1 in general cosmetic use
(CIR Expert
Panel, Safety Assessment of Peptides, 2014, PDF). The Ordinary’s GHK-Cu
at 1% is far above that industry-typical figure, which is the point of the
product. The six “Buffet” peptides at positions five to eleven are
not individually disclosed, so all the label licenses you to conclude is that
each is below 1%.

Label positions	What sits there	What the position implies
4	Copper Tripeptide-1 (1%)	The marketed hero; disclosed at 1%, real evidence base
5–11	Six further peptides (Matrixyl, SYN-AKE, Argireline-family)	Each below 1% by position; individual amounts undisclosed
15–25	Eleven amino acids	Surface hydration; cheap commodity bulk
26–29	Four sugars	More NMF-family hydration; inexpensive
44	Dimethyl Isosorbide	Penetration helper — but near the bottom
45–49	Five preservatives	Formula stability, not actives

So the “Buffet” is real in the sense that seven peptides are on
the label. Whether it is a buffet in the sense the name suggests — a
generous helping of each — is harder to defend from a list on which six of
the seven sit below one percent.

Nib stands beside a stacked row of eleven identical little amino-acid blocks and four round sugar cubes, counting them on stubby fingers with a puzzled expression. — Eleven amino acids and four sugars in a row: cheap, tidy, and taking up a whole stretch of the middle of the label.

What fills positions 15 to 29?

This is where the label gets talkative. Positions fifteen through
twenty-five are eleven amino acids in a row: glycine, alanine, serine, valine,
isoleucine, proline, threonine, histidine, phenylalanine, arginine and aspartic
acid. Positions twenty-six through twenty-nine are four sugars: trehalose,
fructose, glucose and maltose. Add urea and the sodium PCA / PCA / sodium lactate
cluster just after, and a large stretch of the middle of this formula is one
thing: Natural Moisturizing Factor components, the humectants marketed on the
page as “amino acids and Bio-Derivatives.”

None of that is a bad ingredient. NMF compounds are the humectants your own
skin already uses to hold water at the surface, and they do a real, modest job.
But two points are worth saying plainly. First, amino acids and simple sugars are
among the cheapest inputs in a cosmetic chemist’s cabinet — commodity
bulk. Second, a long run of the label is taken up doing surface hydration that a
much shorter humectant system could cover. That is not deception; the label makes
it plain. It is simply worth knowing that a chunk of the ingredient count you are
reading is inexpensive, plentiful material rather than more actives.

Nib peers through the magnifying glass at a single small bottle marked D M I sitting alone near the bottom of the list, one eyebrow raised. — The one penetration helper sits at forty-four. Nib wonders whether there is enough of it down there to matter.

Can the copper peptide actually get where it needs to go?

Here is the part of the label that made us pause. A GHK-Cu molecule is small,
but it is also charged, and charged peptides do not cross intact skin easily.
That makes the one dedicated penetration helper on the label worth locating:
Dimethyl Isosorbide sits at position forty-four — below
the thickeners, below the emulsifiers, near the very end of the list. Solvents of
that type are sometimes used at double-digit percentages when a formula is
genuinely built to drive a hard-to-absorb active across the barrier. At position
forty-four, the amount present is far lower than that.

We are careful here: you cannot read an exact percentage off a list, and at a
low level Dimethyl Isosorbide may be doing a perfectly sensible job as a
solubiliser for other ingredients rather than as a delivery vehicle for the
copper. What the label can tell you is that this formula does not appear to lean
hard on penetration enhancement to carry GHK-Cu into the skin. Whether that
changes the result is an open question the ingredient list raises but cannot
close.

Is the preservative system the real irritation story?

The last five names on the label — sodium benzoate, caprylyl glycol,
ethylhexylglycerin, phenoxyethanol and chlorphenesin — are the preservative
system, and phenoxyethanol is the name ingredient-savvy communities argue about
most, though it is only one of several preservatives to recognise here. Copper
peptides themselves can, in a minority of people, cause mild transient stinging,
and copper contact allergy is real but uncommon, so a patch test is sensible for
anyone with metal-sensitive skin.

The point worth holding onto is that when someone reports a serum
“didn’t agree with me,” the peptide is not automatically the
cause. A stack of five preservatives is a more common source of a reaction than a
well-tolerated tripeptide. If your skin is reactive, patch-test on the inner
forearm for a few days before it goes near your face — and if you do react,
the preservative block gives you several other suspects before you blame the
copper.

So is it worth it, and what does a different formula look like?

On its own terms, this is an honest label. The headline active is real, near
the top, and quantified — genuinely unusual for the category. The rest is
six lower-dose peptides, a long run of cheap NMF hydration, and a competent
preservative system, with a delivery question the ingredient list raises but
cannot answer. If you want an affordable, widely stocked copper peptide serum,
and you go in understanding that the “Buffet” is one feature peptide
and six sides, it is a defensible buy at around fifteen dollars.

What would you change if you were reading this label as a formulator?
Probably fewer commodity NMF placeholders and a harder look at delivery. That is
the thinking behind the copper peptide serum we make —
Evil
Goods’ Copper Peptide Blue Honey Serum (our product), built around
copper peptides, hyaluronic acid, Manuka honey and niacinamide. In fairness we
owe you the same scrutiny we just applied: The Ordinary discloses its 1%, and
Evil Goods does not publish a copper concentration for ours, so on that one
measure of transparency they are ahead of us. Ingredient Desk is published by the
team behind Evil Goods, so read our comparisons knowing that.

FAQ

Does The Ordinary actually use 1% copper peptides?
The label states 1%, and Copper Tripeptide-1 sits fourth on the ingredient list
— near the top, above the preservatives. Both the disclosed figure and the
label position point the same way. That is unusually transparent for the
category.

What is Matrixyl, and how much is in this serum?
Matrixyl is a marketing name for palmitoyl peptides such as Palmitoyl Tripeptide-1
and Palmitoyl Tetrapeptide-7, which appear at positions seven and eight here.
Because they fall below the 1% copper peptide at position four, each is present at
under 1%; the exact amount is not disclosed.

Why are there so many amino acids and sugars in it?
Positions fifteen through twenty-nine are eleven amino acids and four sugars, all
Natural Moisturizing Factor components. They provide real surface hydration and
are among the cheapest ingredients available, which is how a formula ends up with
a long run of them.

Will the copper peptide actually absorb?
GHK-Cu is small but charged, which makes crossing intact skin harder. The
formula’s one penetration helper, Dimethyl Isosorbide, sits at position
forty-four, suggesting a low level. The ingredient list raises the absorption
question but cannot answer it.

Could this serum irritate my skin?
A minority of people get mild transient stinging from copper peptides, and copper
contact allergy is uncommon but real, so patch-test if your skin is
metal-sensitive. The stack of five preservatives is also a plausible source of a
reaction.

Nib closes a small notebook titled Ingredient Desk, sets the magnifying glass down, and gives a satisfied nod beside the fully-read label. — Label read, bottom to top. The copper is real and quantified. The open question is everything sitting around it.

September 13, 2026

The Ordinary Copper Peptide Serum: Reading the Whole Label

The Ordinary’s Multi-Peptide + Copper Peptides 1%
lists Copper Tripeptide-1 at the fourth position on a long label, with 1%
disclosed. The hero is genuinely near the top and the brand tells you the
concentration — which is more than most copper peptide serums do. The
story is not a buried active. It is what fills the positions below it, and one
small ingredient near the bottom that decides whether any of it reaches your
skin.

Most of the “read the label” pieces we write here end with the
marketed hero sitting embarrassingly far down the ingredient list, somewhere
below the preservatives. This one does not, and that is exactly why it is worth
reading. The Ordinary put the copper peptide where it belongs and told you how
much is in there. So the interesting question changes. When the active is real
and the concentration is honest, what does the rest of a very long
label tell you?

We read every name on the label, top to bottom. Here is what it says.

Nib the round pencil-sketch creature holds a magnifying glass up to a tall serum bottle labelled with the number 49, squinting at the tiny type. — Forty-nine names on one label. Nib starts at the top, where the copper peptide actually lives.

Where does the copper peptide actually sit?

Here is the full list, quoted verbatim as it appears on the product page at
Ulta,
read on 29 August 2026 (a matching list appears at another major retailer,
dated 15 August 2026):

Aqua (Water), Glycerin, Lactococcus Ferment Lysate, Copper Tripeptide-1, Acetyl Hexapeptide-8, Pentapeptide-18, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-38, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Acetylarginyltryptophyl Diphenylglycine, Sodium Hyaluronate Crosspolymer, Sodium Hyaluronate, Allantoin, Glycine, Alanine, Serine, Valine, Isoleucine, Proline, Threonine, Histidine, Phenylalanine, Arginine, Aspartic Acid, Trehalose, Fructose, Glucose, Maltose, Urea, Sodium PCA, PCA, Sodium Lactate, Citric Acid, Hydroxypropyl Cyclodextrin, Sodium Chloride, Sodium Hydroxide, Butylene Glycol, Pentylene Glycol, Acacia Senegal Gum, Xanthan Gum, Carbomer, Polysorbate 20, Dimethyl Isosorbide, Sodium Benzoate, Caprylyl Glycol, Ethylhexylglycerin, Phenoxyethanol, Chlorphenesin.

Copper Tripeptide-1 — GHK-Cu, the molecule the whole product is named
after — is fourth on the list, right behind water, glycerin and a
postbiotic ferment. The label states 1%. On a label, where things are ordered
roughly by weight down to about the 1% mark, fourth place with a disclosed
percentage is close to the best a shopper can hope for. The copper is there,
near the top, and you are told how much. Credit where it is due.

Marketed hero: Copper Tripeptide-1 (GHK-Cu)
Position on label: Fourth from the top
Concentration disclosed?: Yes — 1% stated on the label
Source of list: Ulta product page, read 29 Aug 2026; corroborated at a second major retailer, 15 Aug 2026

The reason copper peptides get talked about at all is that the biology is not
imaginary. In a review of the GHK-Cu literature, Pickart and Margolina describe
the peptide stimulating fibroblast activity and collagen and elastin
production in skin, with small clinical studies reporting improved skin density
over twelve weeks of use
(Pickart & Margolina, 2018).
That is a genuine evidence base, and it is why the ingredient is worth putting
near the top of a label rather than a fingernail of it near the bottom. So far,
so good.

Nib runs a pencil down a long numbered ingredient list, tapping position four where a bright coin-shaped copper mark sits near the top. — Position four, one percent, printed in plain sight. For once the hero is not hiding.

What fills positions 15 to 29?

This is where the label gets more talkative. Positions fifteen through
twenty-five are eleven amino acids in a row: glycine, alanine, serine, valine,
isoleucine, proline, threonine, histidine, phenylalanine, arginine and aspartic
acid. Positions twenty-six through twenty-nine are four sugars: trehalose,
fructose, glucose and maltose. Add urea and the sodium PCA / PCA / sodium
lactate cluster just after, and a large stretch of the middle of this formula is
one thing: Natural Moisturizing Factor components.

None of that is a bad ingredient. NMF compounds are the humectants your own
skin already uses to hold water at the surface, and they do a real, modest job.
But a couple of points are worth saying plainly. First, they are among the cheapest
inputs in a cosmetic chemist’s cabinet — amino acids and simple sugars are
commodity bulk. Second, a long stretch of the label — roughly a third of
every slot on it — is taken up doing surface hydration that a much shorter
humectant system could cover. That is not deception. It is a formula padded out
with inexpensive, plentiful material, and the label makes it plain.

Label positions	What sits there	What it does
4	Copper Tripeptide-1 (1%)	The marketed hero; real evidence base
5–11	Seven further peptides	Below 1% each, by position
15–25	Eleven amino acids	Surface hydration; cheap commodity bulk
26–29	Four sugars	More NMF-family hydration; cheap
44	Dimethyl Isosorbide	Penetration helper — but near the bottom
Final block	Five preservatives	Formula stability, not actives

Nib stands beside a stacked column of eleven identical little amino-acid blocks and four round sugar cubes, counting them on stubby fingers with a puzzled look. — Eleven amino acids and four sugars in a row. Cheap, tidy, and occupying a third of the label.

Can the copper peptide actually get where it needs to go?

Here is the part of the label that made us stop. A GHK-Cu molecule is small
— about 340 daltons, under the rough 500-dalton ceiling for passive skin
penetration — but it is also charged, and charged peptides struggle to
cross intact skin regardless of size. Work summarised by specialist writers
citing Li and colleagues describes near-zero permeation of GHK-Cu through intact
human skin without help, with meaningful amounts reaching the dermis only after
the skin barrier was physically breached
(research summary, EvenSkyn, 2026;
the underlying primary source is Li et al. in Pharmaceutical Research).

So the single dedicated penetration enhancer on the label matters a great deal.
Dimethyl Isosorbide sits at position forty-four — below the
thickeners, below the emulsifiers, near the very end of the label.
Penetration enhancers of that type are commonly used at something like 10–20%
to genuinely shift a hard-to-absorb active across the barrier. At position
forty-four, the amount present is almost certainly far lower than that.

We are careful here: you cannot read an exact percentage off a list, and at a
low level Dimethyl Isosorbide may be doing a perfectly sensible job as a
solubiliser for other ingredients rather than as a delivery vehicle for the
copper. What the label can tell you is that this formula does not appear to lean
hard on penetration enhancement to carry GHK-Cu into the skin. Whether that
matters for the result is an open question the ingredient list cannot close.

Nib peers at a single small bottle marked D M I sitting alone near the very bottom of the list, holding the magnifying glass close and raising an eyebrow. — The one penetration helper sits at forty-four. Nib wonders whether there is enough of it to matter.

Is the preservative system the real irritation story?

The last five names on the label — sodium benzoate, caprylyl glycol,
ethylhexylglycerin, phenoxyethanol and chlorphenesin — are the
preservative system, and phenoxyethanol is the name ingredient-savvy communities
argue about most. Copper peptides themselves can, in a minority of people, cause
mild transient irritation, and copper contact allergy is real but uncommon, so a
patch test is sensible for anyone with metal-sensitive skin
(GHK-Cu tolerability overview, Klow, 2026).

The point worth holding onto is that when someone reports a serum “broke
me out,” the peptide is not automatically the culprit. A stack of five
preservatives is a more common source of reactive skin than a well-tolerated
tripeptide. If you are sensitive, patch-test on the inner forearm for a few days
before it goes near your face — and if you react, the preservative block
gives you several other suspects before you blame the copper.

So is it worth it, and what does a different formula look like?

On its own terms, this is an honest product. The active is real, near the top,
and quantified. The rest of the label is cheap NMF hydration and a competent
preservative system, with a delivery question hanging over the whole thing that
the ingredient list raises but cannot answer. If you want an affordable, widely
stocked copper peptide serum and you understand that a large share of the formula
is inexpensive humectant bulk, it is a defensible buy.

What would you change if you were reading this label as a formulator?
Probably fewer commodity NMF placeholders and a harder look at delivery. That is
the thinking behind the copper peptide serum we make —
Evil Goods’ Copper Peptide Blue Honey Serum (our product),
built around copper peptides, hyaluronic acid, Manuka honey and niacinamide. In
fairness we owe you the same scrutiny we just applied: The Ordinary discloses its
1%, and Evil Goods does not publish a copper concentration for ours, so on that
one measure of transparency they are ahead of us. If you are weighing a serum
against a cream for copper peptides, we walk through the trade-off in
serum versus cream.
Ingredient Desk is published by the team behind Evil Goods, so read our
comparisons knowing that.

FAQ

Where is the copper peptide in The Ordinary Multi-Peptide + Copper
Peptides 1%?
Fourth on the label, with 1% disclosed — near the top, and quantified.
That is unusually transparent for the category.

Why are there so many amino acids and sugars in it?
Positions fifteen through twenty-nine are eleven amino acids and four sugars,
all Natural Moisturizing Factor components. They provide real surface hydration
and are among the cheapest ingredients available, which is how a formula ends up
with a long run of them.

Will the copper peptide actually absorb?
GHK-Cu is small but charged, and research summaries citing Li et al. describe
near-zero permeation through intact skin without help. The formula’s one
penetration enhancer, Dimethyl Isosorbide, sits at position forty-four, which
suggests a low level. The ingredient list raises the question but cannot answer
it.

Could this serum irritate my skin?
A minority of people get mild transient irritation from copper peptides, and
copper contact allergy is uncommon but real, so patch-test if your skin is
metal-sensitive. The stack of five preservatives is also a plausible
source of reactions.

Is The Ordinary being honest with this label?
On the hero ingredient, yes — disclosed position and concentration. The
open questions are the share of cheap NMF bulk and the delivery of the active,
neither of which the brand hides; they are simply readable off the label.

Nib sets down the magnifying glass, closes a little notebook titled Ingredient Desk, and gives a small satisfied nod beside the fully-read label. — Label read, bottom to top. The copper is real. The question is everything sitting around it.

August 29, 2026