PEPTIVELO / THE SKINCARE EDITION

Compare peptide serums

Choose two serums to compare their documented labels, price observations, and disclosures.

THE DIFFERENCES, WITH CONTEXT

Your comparison, at a glance.

Based on recorded label facts

Show only differencesAll recorded details · No product rankings

Compare recorded facts side by side. Missing information is not a negative rating.

Peptide serum label comparison: COSRX and The Ordinary
Compare the detailsTwo products. The same questions.	APRODUCT 1 COSRX The 6 Peptide Skin Booster Serum Mini Price not verified50 mL · No unit cost available Label checked 2026-10-20 YOUR COMPARISON / PRODUCT 1 Choose your first product. Recognize the label. Check the size. See what’s documented. 11 products in this catalogUS LABELS · USD Label facts, not product ratings. Photographs show the recorded product variants; check each presentation before buying.	BPRODUCT 2 The Ordinary Multi-Peptide + Copper Peptides 1% Serum $32.0030 mL · $1.07/mLPrice recorded 2026-10-18 Label checked 2026-10-20 YOUR COMPARISON / PRODUCT 2 Choose your second product. Recognize the label. Check the size. See what’s documented. 11 products in this catalogUS LABELS · USD Label facts, not product ratings. Photographs show the recorded product variants; check each presentation before buying.
Product basics
Presentation	50 mL	30 mL
Format	First-step cosmetic serum	Water-based serum
How the brand says to use it	The manufacturer describes use after cleansing, as a first step. Follow current package directions.Manufacturer directions, not a personalized routine.	Directions not recorded. Read the manufacturer's current instructions.Manufacturer directions, not a personalized routine.
Price & value
Recorded price	Not recordedNo verified price for this size.	$32.00 USDPrice recorded 2026-10-18Excludes tax and shipping.
Price per mL	Not availableRequires a verified price for this size.	$1.07 / mL
What it contains and what it means
Peptides, explained Peptides are small chains of the building blocks used in proteins. Their names identify ingredients, not quality scores. Open an explanation to learn what each one means.	Acetyl Hexapeptide-8 A peptide studied for the appearance of expression lines around the eyes. Full guide INGREDIENT, EXPLAINED Acetyl Hexapeptide-8 A peptide studied for the appearance of expression lines around the eyes. Type of support: Ingredient study Editorial draft · Qualified scientific review pending. What it is A synthetic peptide investigated under the name Argireline. The study concerns a specific preparation, not every product listing this ingredient. Wang et al. (2013): randomized study of Argireline and eye-area lines Why it is used Studied as a cosmetic ingredient for reducing the appearance of eye-area lines. Wang et al. (2013): randomized study of Argireline and eye-area lines What the evidence means A four-week randomized placebo-controlled trial enrolled 60 Chinese participants (3:1 allocation) and reported improved eye-area wrinkle measures. The inspected abstract does not establish results for the retail serums here or long-term benefit. A 24-hour laboratory skin-penetration study is a different kind of evidence, not a clinical efficacy trial. Wang et al. (2013): randomized study of Argireline and eye-area lines In vitro skin penetration of acetyl hexapeptide-8 from a cosmetic formulation Precautions and possible reactions The 2025 safety panel concluded safe cosmetic use up to 0.005%; above that, it found insufficient data to determine safety. This is not evidence of harm above that amount. The pure-peptide concentrations in these compared serums are not verified, so this assessment cannot certify either bottle. A commercial blend percentage is not automatically the pure-peptide percentage. Cosmetics can cause irritation or allergic reactions. Check the full ingredient list and follow product directions. Acetyl Hexapeptide-8 Amide: cosmetic safety assessment (2025) Allergens in cosmetics: reactions and consumer precautions What this means for your comparison There is human research on a preparation of this ingredient. That is different from a direct test of this serum. Sources checked 2026-10-20. Ingredient information is separate from testing a finished serum. Read the full ingredient guide Copper Tripeptide-1 A copper-linked peptide used to help keep skin in good condition. Full guide INGREDIENT, EXPLAINED Copper Tripeptide-1 A copper-linked peptide used to help keep skin in good condition. Type of support: Safety assessment Editorial draft · Qualified scientific review pending. What it is A short peptide joined to copper. This is an ingredient name, not a quality score. Peptide ingredient identities, functions and safety assessment (2018) Why it is used Used as a skin-conditioning ingredient: a broad cosmetic role concerned with skin condition and appearance. Peptide ingredient identities, functions and safety assessment (2018) What the evidence means The CIR assessment addresses specified cosmetic identities, uses and concentrations. It is a safety assessment, not a trial showing that a finished serum reduces wrinkles. A full topical efficacy review remains pending. Peptide ingredient identities, functions and safety assessment (2018) Precautions and possible reactions Cosmetic safety conclusions do not extend to injection. FDA separately identifies limited human safety data and potential immune-response risks for compounded injectable GHK-Cu. Cosmetics can cause irritation or allergic reactions. Check the full ingredient list and follow product directions. Peptide ingredient identities, functions and safety assessment (2018) Compounding substances that may present significant safety risks Allergens in cosmetics: reactions and consumer precautions What this means for your comparison Its presence identifies a copper-peptide ingredient. It does not tell us the results you will get from the whole serum. Sources checked 2026-10-20. Ingredient information is separate from testing a finished serum. Read the full ingredient guide sh-Polypeptide-121 Listed in the COSRX formula. Research review pending. Full guide INGREDIENT, EXPLAINED sh-Polypeptide-121 Listed in the COSRX formula. Research review pending. Type of support: Label information What it is An exact name recorded from the manufacturer’s ingredient list. COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label Why it is used The brand includes it in a cosmetic peptide blend; this is a label description. COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label What the evidence means Only label presence is documented here. No ingredient efficacy review is complete. COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label Precautions and possible reactions This label source does not establish ingredient-specific safety. Consult the complete current label. Cosmetics can cause irritation or allergic reactions. Check the full ingredient list and follow product directions. COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label Allergens in cosmetics: reactions and consumer precautions What this means for your comparison An ingredient name is not proof that a finished formula works. Sources checked 2026-10-20. Ingredient information is separate from testing a finished serum. Read the full ingredient guide Dipeptide Diaminobutyroyl Benzylamide Diacetate A named peptide in some cosmetic blends; formula evidence is separate from ingredient evidence. Full guide INGREDIENT, EXPLAINED Dipeptide Diaminobutyroyl Benzylamide Diacetate A named peptide in some cosmetic blends; formula evidence is separate from ingredient evidence. Type of support: Formulation study What it is An exact name recorded from the manufacturer’s ingredient list. COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label Why it is used The brand includes it in a cosmetic peptide blend; this is a label description. COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label What the evidence means A 2026 paper studied a multi-ingredient serum containing this name. Reported formula improvements cannot isolate this ingredient’s contribution. Serum with acetyl hexapeptide-8, dipeptide and gluconolactone: ex vivo and clinical studies Precautions and possible reactions This label source does not establish ingredient-specific safety. Consult the complete current label. Cosmetics can cause irritation or allergic reactions. Check the full ingredient list and follow product directions. COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label Allergens in cosmetics: reactions and consumer precautions What this means for your comparison An ingredient name is not proof that a finished formula works. Sources checked 2026-10-20. Ingredient information is separate from testing a finished serum. Read the full ingredient guide Oligopeptide-68 Listed in the COSRX formula. Research review pending. Full guide INGREDIENT, EXPLAINED Oligopeptide-68 Listed in the COSRX formula. Research review pending. Type of support: Label information What it is An exact name recorded from the manufacturer’s ingredient list. COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label Why it is used The brand includes it in a cosmetic peptide blend; this is a label description. COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label What the evidence means Only label presence is documented here. No ingredient efficacy review is complete. COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label Precautions and possible reactions This label source does not establish ingredient-specific safety. Consult the complete current label. Cosmetics can cause irritation or allergic reactions. Check the full ingredient list and follow product directions. COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label Allergens in cosmetics: reactions and consumer precautions What this means for your comparison An ingredient name is not proof that a finished formula works. Sources checked 2026-10-20. Ingredient information is separate from testing a finished serum. Read the full ingredient guide Palmitoyl Tripeptide-8 Listed in the COSRX formula. Research review pending. Full guide INGREDIENT, EXPLAINED Palmitoyl Tripeptide-8 Listed in the COSRX formula. Research review pending. Type of support: Label information What it is An exact name recorded from the manufacturer’s ingredient list. COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label Why it is used The brand includes it in a cosmetic peptide blend; this is a label description. COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label What the evidence means Only label presence is documented here. No ingredient efficacy review is complete. COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label Precautions and possible reactions This label source does not establish ingredient-specific safety. Consult the complete current label. Cosmetics can cause irritation or allergic reactions. Check the full ingredient list and follow product directions. COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label Allergens in cosmetics: reactions and consumer precautions What this means for your comparison An ingredient name is not proof that a finished formula works. Sources checked 2026-10-20. Ingredient information is separate from testing a finished serum. Read the full ingredient guide Selected peptide names from the official mini label, not the full INCI list. Check your package for changes.	Copper Tripeptide-1 A copper-linked peptide used to help keep skin in good condition. Full guide INGREDIENT, EXPLAINED Copper Tripeptide-1 A copper-linked peptide used to help keep skin in good condition. Type of support: Safety assessment Editorial draft · Qualified scientific review pending. What it is A short peptide joined to copper. This is an ingredient name, not a quality score. Peptide ingredient identities, functions and safety assessment (2018) Why it is used Used as a skin-conditioning ingredient: a broad cosmetic role concerned with skin condition and appearance. Peptide ingredient identities, functions and safety assessment (2018) What the evidence means The CIR assessment addresses specified cosmetic identities, uses and concentrations. It is a safety assessment, not a trial showing that a finished serum reduces wrinkles. A full topical efficacy review remains pending. Peptide ingredient identities, functions and safety assessment (2018) Precautions and possible reactions Cosmetic safety conclusions do not extend to injection. FDA separately identifies limited human safety data and potential immune-response risks for compounded injectable GHK-Cu. Cosmetics can cause irritation or allergic reactions. Check the full ingredient list and follow product directions. Peptide ingredient identities, functions and safety assessment (2018) Compounding substances that may present significant safety risks Allergens in cosmetics: reactions and consumer precautions What this means for your comparison Its presence identifies a copper-peptide ingredient. It does not tell us the results you will get from the whole serum. Sources checked 2026-10-20. Ingredient information is separate from testing a finished serum. Read the full ingredient guide Acetyl Hexapeptide-8 A peptide studied for the appearance of expression lines around the eyes. Full guide INGREDIENT, EXPLAINED Acetyl Hexapeptide-8 A peptide studied for the appearance of expression lines around the eyes. Type of support: Ingredient study Editorial draft · Qualified scientific review pending. What it is A synthetic peptide investigated under the name Argireline. The study concerns a specific preparation, not every product listing this ingredient. Wang et al. (2013): randomized study of Argireline and eye-area lines Why it is used Studied as a cosmetic ingredient for reducing the appearance of eye-area lines. Wang et al. (2013): randomized study of Argireline and eye-area lines What the evidence means A four-week randomized placebo-controlled trial enrolled 60 Chinese participants (3:1 allocation) and reported improved eye-area wrinkle measures. The inspected abstract does not establish results for the retail serums here or long-term benefit. A 24-hour laboratory skin-penetration study is a different kind of evidence, not a clinical efficacy trial. Wang et al. (2013): randomized study of Argireline and eye-area lines In vitro skin penetration of acetyl hexapeptide-8 from a cosmetic formulation Precautions and possible reactions The 2025 safety panel concluded safe cosmetic use up to 0.005%; above that, it found insufficient data to determine safety. This is not evidence of harm above that amount. The pure-peptide concentrations in these compared serums are not verified, so this assessment cannot certify either bottle. A commercial blend percentage is not automatically the pure-peptide percentage. Cosmetics can cause irritation or allergic reactions. Check the full ingredient list and follow product directions. Acetyl Hexapeptide-8 Amide: cosmetic safety assessment (2025) Allergens in cosmetics: reactions and consumer precautions What this means for your comparison There is human research on a preparation of this ingredient. That is different from a direct test of this serum. Sources checked 2026-10-20. Ingredient information is separate from testing a finished serum. Read the full ingredient guide Palmitoyl Tripeptide-1 A skin-conditioning peptide used in blends marketed for the appearance of wrinkles. Full guide INGREDIENT, EXPLAINED Palmitoyl Tripeptide-1 A skin-conditioning peptide used in blends marketed for the appearance of wrinkles. Type of support: Supplier description Editorial draft · Qualified scientific review pending. What it is A peptide with three amino-acid units and an attached fatty-acid part. The added part distinguishes its ingredient name. Peptide ingredient identities, functions and safety assessment (2018) Why it is used Croda includes it in Matrixyl 3000, an ingredient blend marketed for wrinkle appearance. This does not confirm a branded blend or its dose in this serum. Matrixyl 3000: supplier description and ingredient names What the evidence means The supplier describes a blend, not an independent test of this ingredient alone in The Ordinary serum. Matrixyl 3000: supplier description and ingredient names Precautions and possible reactions A safety review addresses reported cosmetic uses, not every possible formula or individual reaction. Cosmetics can cause irritation or allergic reactions. Check the full ingredient list and follow product directions. Peptide ingredient identities, functions and safety assessment (2018) Allergens in cosmetics: reactions and consumer precautions What this means for your comparison A peptide blend’s claims cannot be assigned to this ingredient alone or used to rank these two serums. Sources checked 2026-10-19. Ingredient information is separate from testing a finished serum. Read the full ingredient guide Palmitoyl Tetrapeptide-7 A skin-conditioning peptide used in blends marketed for the appearance of wrinkles. Full guide INGREDIENT, EXPLAINED Palmitoyl Tetrapeptide-7 A skin-conditioning peptide used in blends marketed for the appearance of wrinkles. Type of support: Supplier description Editorial draft · Qualified scientific review pending. What it is A peptide with four amino-acid units and an attached fatty-acid part. The added part distinguishes its ingredient name. Peptide ingredient identities, functions and safety assessment (2018) Why it is used Croda includes it in Matrixyl 3000, an ingredient blend marketed for wrinkle appearance. This does not confirm a branded blend or its dose in this serum. Matrixyl 3000: supplier description and ingredient names What the evidence means The supplier describes a blend, not an independent test of this ingredient alone in The Ordinary serum. Matrixyl 3000: supplier description and ingredient names Precautions and possible reactions A safety review addresses reported cosmetic uses, not every possible formula or individual reaction. Cosmetics can cause irritation or allergic reactions. Check the full ingredient list and follow product directions. Peptide ingredient identities, functions and safety assessment (2018) Allergens in cosmetics: reactions and consumer precautions What this means for your comparison A peptide blend’s claims cannot be assigned to this ingredient alone or used to rank these two serums. Sources checked 2026-10-19. Ingredient information is separate from testing a finished serum. Read the full ingredient guide Selected label ingredients, not the complete INCI list. See the manufacturer for the full formula.
How much of each ingredient? A formula is the whole mix. A blend percentage does not tell us the amount of every ingredient.	Six describes the named peptide blend, not a percentage or an efficacy score.Manufacturer disclosure; not independently measured.	The product name states 1% copper peptides. Amounts of the other selected peptides are not recorded.Manufacturer disclosure; not independently measured.
Sources & limits
What we still cannot know	Not established Verified price for this size Complete ingredient list in this catalog Independent comparative effectiveness	Not established Complete ingredient list in this catalog Independent comparative effectiveness
Label source	COSRX manufacturer label Label checked 2026-10-20Label checked; not a clinical review.	The Ordinary manufacturer label Label checked 2026-10-20Label checked; not a clinical review.

Prices are dated USD observations. Ingredient selections are incomplete; matching names do not establish equivalent formulas or results.

Understand this buying decision · Editorial draft

What these differences mean

Different names do not tell us which serum works better.

Some selected ingredient names match, but amounts and the rest of each formula may differ. Open an ingredient explanation to see its intended use and the kind of evidence behind it.

Check the whole product for precautions.

An ingredient name cannot predict your skin’s reaction. Cosmetics can cause irritation or allergic reactions. Check the complete label and follow the product directions.

FDA: cosmetic reactions and precautions

One ingredient study does not rank these serums.

Studies of an ingredient, supplier descriptions and brand claims answer different questions. We have not recorded an independent head-to-head study of these two serums. A missing price also prevents a complete cost comparison.

Go a little deeper.

Open the questions that matter to you.

Price & sizeCompare the same amount, not just the bottle price.

Recorded price

ACOSRXNot verified for this size50 mL

BThe Ordinary$32.0030 mLUSD · Recorded 2026-10-18

Cost for the same amount

ACOSRXUnavailable until the size-specific price is verified.

BThe Ordinary$1.07 / mL$31.55 / US fl oz

Prices are dated observations, excluding tax and shipping. Stock and current checkout prices are not verified. One US fl oz equals 29.5735295625 mL.

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IngredientsShared names, different names, and the limits of the label.

Shared exact names in this selection

Acetyl Hexapeptide-8, Copper Tripeptide-1

Names recorded only on this selected label

ACOSRX

sh-Polypeptide-121
Listed in the COSRX formula. Research review pending.
Full guide
INGREDIENT, EXPLAINED
sh-Polypeptide-121
Listed in the COSRX formula. Research review pending.
Type of support: Label information
What it is
An exact name recorded from the manufacturer’s ingredient list.
COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label
Why it is used
The brand includes it in a cosmetic peptide blend; this is a label description.
COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label
What the evidence means
Only label presence is documented here. No ingredient efficacy review is complete.
COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label
Precautions and possible reactions
This label source does not establish ingredient-specific safety. Consult the complete current label.
Cosmetics can cause irritation or allergic reactions. Check the full ingredient list and follow product directions.
COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label
Allergens in cosmetics: reactions and consumer precautions
What this means for your comparison
An ingredient name is not proof that a finished formula works.
Sources checked 2026-10-20. Ingredient information is separate from testing a finished serum.
Read the full ingredient guide
Dipeptide Diaminobutyroyl Benzylamide Diacetate
A named peptide in some cosmetic blends; formula evidence is separate from ingredient evidence.
Full guide
INGREDIENT, EXPLAINED
Dipeptide Diaminobutyroyl Benzylamide Diacetate
A named peptide in some cosmetic blends; formula evidence is separate from ingredient evidence.
Type of support: Formulation study
What it is
An exact name recorded from the manufacturer’s ingredient list.
COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label
Why it is used
The brand includes it in a cosmetic peptide blend; this is a label description.
COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label
What the evidence means
A 2026 paper studied a multi-ingredient serum containing this name. Reported formula improvements cannot isolate this ingredient’s contribution.
Serum with acetyl hexapeptide-8, dipeptide and gluconolactone: ex vivo and clinical studies
Precautions and possible reactions
This label source does not establish ingredient-specific safety. Consult the complete current label.
Cosmetics can cause irritation or allergic reactions. Check the full ingredient list and follow product directions.
COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label
Allergens in cosmetics: reactions and consumer precautions
What this means for your comparison
An ingredient name is not proof that a finished formula works.
Sources checked 2026-10-20. Ingredient information is separate from testing a finished serum.
Read the full ingredient guide
Oligopeptide-68
Listed in the COSRX formula. Research review pending.
Full guide
INGREDIENT, EXPLAINED
Oligopeptide-68
Listed in the COSRX formula. Research review pending.
Type of support: Label information
What it is
An exact name recorded from the manufacturer’s ingredient list.
COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label
Why it is used
The brand includes it in a cosmetic peptide blend; this is a label description.
COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label
What the evidence means
Only label presence is documented here. No ingredient efficacy review is complete.
COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label
Precautions and possible reactions
This label source does not establish ingredient-specific safety. Consult the complete current label.
Cosmetics can cause irritation or allergic reactions. Check the full ingredient list and follow product directions.
COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label
Allergens in cosmetics: reactions and consumer precautions
What this means for your comparison
An ingredient name is not proof that a finished formula works.
Sources checked 2026-10-20. Ingredient information is separate from testing a finished serum.
Read the full ingredient guide
Palmitoyl Tripeptide-8
Listed in the COSRX formula. Research review pending.
Full guide
INGREDIENT, EXPLAINED
Palmitoyl Tripeptide-8
Listed in the COSRX formula. Research review pending.
Type of support: Label information
What it is
An exact name recorded from the manufacturer’s ingredient list.
COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label
Why it is used
The brand includes it in a cosmetic peptide blend; this is a label description.
COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label
What the evidence means
Only label presence is documented here. No ingredient efficacy review is complete.
COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label
Precautions and possible reactions
This label source does not establish ingredient-specific safety. Consult the complete current label.
Cosmetics can cause irritation or allergic reactions. Check the full ingredient list and follow product directions.
COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label
Allergens in cosmetics: reactions and consumer precautions
What this means for your comparison
An ingredient name is not proof that a finished formula works.
Sources checked 2026-10-20. Ingredient information is separate from testing a finished serum.
Read the full ingredient guide

BThe Ordinary

Palmitoyl Tripeptide-1
A skin-conditioning peptide used in blends marketed for the appearance of wrinkles.
Full guide
INGREDIENT, EXPLAINED
Palmitoyl Tripeptide-1
A skin-conditioning peptide used in blends marketed for the appearance of wrinkles.
Type of support: Supplier description
Editorial draft · Qualified scientific review pending.
What it is
A peptide with three amino-acid units and an attached fatty-acid part. The added part distinguishes its ingredient name.
Peptide ingredient identities, functions and safety assessment (2018)
Why it is used
Croda includes it in Matrixyl 3000, an ingredient blend marketed for wrinkle appearance. This does not confirm a branded blend or its dose in this serum.
Matrixyl 3000: supplier description and ingredient names
What the evidence means
The supplier describes a blend, not an independent test of this ingredient alone in The Ordinary serum.
Matrixyl 3000: supplier description and ingredient names
Precautions and possible reactions
A safety review addresses reported cosmetic uses, not every possible formula or individual reaction.
Cosmetics can cause irritation or allergic reactions. Check the full ingredient list and follow product directions.
Peptide ingredient identities, functions and safety assessment (2018)
Allergens in cosmetics: reactions and consumer precautions
What this means for your comparison
A peptide blend’s claims cannot be assigned to this ingredient alone or used to rank these two serums.
Sources checked 2026-10-19. Ingredient information is separate from testing a finished serum.
Read the full ingredient guide
Palmitoyl Tetrapeptide-7
A skin-conditioning peptide used in blends marketed for the appearance of wrinkles.
Full guide
INGREDIENT, EXPLAINED
Palmitoyl Tetrapeptide-7
A skin-conditioning peptide used in blends marketed for the appearance of wrinkles.
Type of support: Supplier description
Editorial draft · Qualified scientific review pending.
What it is
A peptide with four amino-acid units and an attached fatty-acid part. The added part distinguishes its ingredient name.
Peptide ingredient identities, functions and safety assessment (2018)
Why it is used
Croda includes it in Matrixyl 3000, an ingredient blend marketed for wrinkle appearance. This does not confirm a branded blend or its dose in this serum.
Matrixyl 3000: supplier description and ingredient names
What the evidence means
The supplier describes a blend, not an independent test of this ingredient alone in The Ordinary serum.
Matrixyl 3000: supplier description and ingredient names
Precautions and possible reactions
A safety review addresses reported cosmetic uses, not every possible formula or individual reaction.
Cosmetics can cause irritation or allergic reactions. Check the full ingredient list and follow product directions.
Peptide ingredient identities, functions and safety assessment (2018)
Allergens in cosmetics: reactions and consumer precautions
What this means for your comparison
A peptide blend’s claims cannot be assigned to this ingredient alone or used to rank these two serums.
Sources checked 2026-10-19. Ingredient information is separate from testing a finished serum.
Read the full ingredient guide

What does “exact name” mean?

We match the written ingredient name, ignoring letter case. We do not merge differently named chemical forms. The same name does not establish the same concentration, delivery, or effect.

Selected peptide names from the official mini label, not the full INCI list. Check your package for changes. Selected label ingredients, not the complete INCI list. See the manufacturer for the full formula.

How much is in the formula?What the brands disclose, without filling in the blanks.

What the brand tells us

ACOSRX

Individual peptide concentrations are not recorded in this source check.

BThe Ordinary

1% copper peptides appears in the product name; individual concentrations for the selected remaining peptides are not recorded.

A disclosed blend percentage does not automatically establish every ingredient’s concentration. These are brand disclosures, not independent laboratory measurements.

Sources & missing informationFollow the facts and see what remains unverified.

Label source

ACOSRXCOSRX label Label checked 2026-10-20

The brand positions it after cleansing. Product efficacy review and barcode verification remain pending. Exact 50 mL label profile only; no 150 mL price inferred.

View product profile

BThe OrdinaryThe Ordinary label Label checked 2026-10-20

Labels may vary by market and reformulation. Check the package you purchase.

View product profile

What we cannot determine

Concentrations that the manufacturer has not individually disclosed.
Complete ingredient overlap from the selections recorded here.
Comparative effectiveness or how either formula will work for your skin.
A reliable price comparison until both exact sizes have verified prices.

Multi-Peptide + Copper Peptides US product label The Ordinary · Manufacturer / supplier information · Accessed 2026-10-20

COSRX The 6 Peptide Skin Booster Serum Mini (50 mL): official label COSRX · Manufacturer / supplier information · Accessed 2026-10-20

Read our comparison methodology

Selected label ingredients, not full formulas. No efficacy scores or clinical equivalence. How we compare