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: The Ordinary and NIOD
Compare the detailsTwo products. The same questions.	APRODUCT 1 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 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 NIOD Copper Amino Isolate Serum 3 1:1 (CAIS3) $93.0030 mL · $3.10/mLPrice recorded 2026-10-20 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	30 mL	30 mL
Format	Water-based serum	Water-based serum
How the brand says to use it	Directions not recorded. Read the manufacturer's current instructions.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	$32.00 USDPrice recorded 2026-10-18Excludes tax and shipping.	$93.00 USDPrice recorded 2026-10-20Excludes tax and shipping.
Price per mL	$1.07 / mL	$3.10 / 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.	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.	Tripeptide-29 A three-part peptide. The number 29 is an identifier, not its strength. Full guide INGREDIENT, EXPLAINED Tripeptide-29 A three-part peptide. The number 29 is an identifier, not its strength. Type of support: Label information Editorial draft · Qualified scientific review pending. What it is PubChem links this name to glycyl-prolyl-hydroxyproline, a chain of three amino-acid units. Tripeptide-29: chemical identity record Why it is used NIOD lists it in its peptide blend, but does not isolate its individual contribution on the label. CAIS3 US product label What the evidence means The recorded sources establish identity and label presence. They do not establish a separate visible benefit from this ingredient in this serum. Tripeptide-29: chemical identity record CAIS3 US product label Precautions and possible reactions An ingredient-specific reaction rate is not established by the sources recorded here. Check the whole product, not just this name. Cosmetics can cause irritation or allergic reactions. Check the full ingredient list and follow product directions. CAIS3 US product label Allergens in cosmetics: reactions and consumer precautions What this means for your comparison 29 does not mean stronger or better than a peptide numbered 1. The number distinguishes the ingredient. Sources checked 2026-10-19. Ingredient information is separate from testing a finished serum. Read the full ingredient guide Tripeptide-1 Copper Acetate A copper-containing peptide name on NIOD’s label; its wording differs from Copper Tripeptide-1. Chemical equivalence has not been established in this review. Full guide INGREDIENT, EXPLAINED Tripeptide-1 Copper Acetate A copper-containing peptide name on NIOD’s label; its wording differs from Copper Tripeptide-1. Chemical equivalence has not been established in this review. Type of support: Label information Editorial draft · Qualified scientific review pending. What it is This exact name appears on the NIOD ingredient list. We keep it separate from differently named copper forms. CAIS3 US product label Why it is used NIOD markets its copper-peptide technology for the appearance of aging skin. That product claim does not isolate the benefit of this exact ingredient. CAIS3 US product label What the evidence means A manufacturer label and product description are recorded. No independent comparison of these two copper ingredient forms is established here. CAIS3 US product label Precautions and possible reactions No ingredient-specific reaction rate is recorded for this exact label name. Do not borrow a safety conclusion from a differently named copper form. Cosmetics can cause irritation or allergic reactions. Check the full ingredient list and follow product directions. CAIS3 US product label Allergens in cosmetics: reactions and consumer precautions What this means for your comparison Different copper names are a label difference; they are not proof that one serum is better. Sources checked 2026-10-19. Ingredient information is separate from testing a finished serum. Read the full ingredient guide Tripeptide-1 Acetate Another peptide form on NIOD’s label. Its name does not state how much is present. Full guide INGREDIENT, EXPLAINED Tripeptide-1 Acetate Another peptide form on NIOD’s label. Its name does not state how much is present. Type of support: Label information Editorial draft · Qualified scientific review pending. What it is A distinct ingredient name recorded in NIOD’s formula, alongside its copper-containing peptide name. CAIS3 US product label Why it is used The brand describes GHK alongside copper-peptide technology. The individual contribution of this exact label ingredient is not demonstrated in the recorded sources. CAIS3 US product label What the evidence means The source is a manufacturer description, not a study isolating this ingredient in this serum. CAIS3 US product label Precautions and possible reactions The recorded label does not establish an individual side-effect rate or a complete safety assessment for this exact form. Cosmetics can cause irritation or allergic reactions. Check the full ingredient list and follow product directions. CAIS3 US product label Allergens in cosmetics: reactions and consumer precautions What this means for your comparison Do not read the ingredient name as an individual percentage or as evidence of a stronger product. Sources checked 2026-10-19. Ingredient information is separate from testing a finished serum. Read the full ingredient guide Acetyl Tetrapeptide-2 A skin-conditioning peptide marketed by its supplier for firmer-looking skin. Full guide INGREDIENT, EXPLAINED Acetyl Tetrapeptide-2 A skin-conditioning peptide marketed by its supplier for firmer-looking skin. Type of support: Supplier description Editorial draft · Qualified scientific review pending. What it is Lubrizol identifies it in Uplevity peptide solution and in a sample cosmetic formula as a skin-conditioning ingredient. Example formulation identifying Acetyl Tetrapeptide-2 as a skin-conditioning agent Why it is used Its supplier markets it for firmer-looking skin. A supplier’s intended use is different from a demonstrated result in NIOD’s serum. Uplevity: supplier description of Acetyl Tetrapeptide-2 What the evidence means The recorded support is supplier information. It does not establish an independent, ingredient-only trial in this serum. Uplevity: supplier description of Acetyl Tetrapeptide-2 Example formulation identifying Acetyl Tetrapeptide-2 as a skin-conditioning agent Precautions and possible reactions The supplier’s sample formula is not a tested commercial product. It does not establish the safety or reaction rate of NIOD’s finished serum. Cosmetics can cause irritation or allergic reactions. Check the full ingredient list and follow product directions. Example formulation identifying Acetyl Tetrapeptide-2 as a skin-conditioning agent Allergens in cosmetics: reactions and consumer precautions What this means for your comparison Firming is an intended cosmetic use described by the supplier, not a promised result for every product. 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. Exact names are preserved without assuming chemical equivalence.
How much of each ingredient? A formula is the whole mix. A blend percentage does not tell us the amount of every ingredient.	The product name states 1% copper peptides. Amounts of the other selected peptides are not recorded.Manufacturer disclosure; not independently measured.	The brand describes two peptide components at 1% each. This does not reveal the amount of every named ingredient.Manufacturer disclosure; not independently measured.
Sources & limits
What we still cannot know	Not established Complete ingredient list in this catalog Independent comparative effectiveness	Not established Complete ingredient list in this catalog Independent comparative effectiveness
Label source	The Ordinary manufacturer label Label checked 2026-10-20Label checked; not a clinical review.	NIOD 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.

The selected peptide names differ. The complete formulas may still share other ingredients. 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. Lower cost per mL does not establish better results.

Go a little deeper.

Open the questions that matter to you.

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

Recorded price

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

BNIOD$93.0030 mLUSD · Recorded 2026-10-20

Cost for the same amount

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

BNIOD$3.10 / mL$91.68 / 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

No exact matches in the selected peptide names. This does not mean there is no overlap in the full ingredient lists.

Names recorded only on this selected label

AThe Ordinary

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

BNIOD

Tripeptide-29
A three-part peptide. The number 29 is an identifier, not its strength.
Full guide
INGREDIENT, EXPLAINED
Tripeptide-29
A three-part peptide. The number 29 is an identifier, not its strength.
Type of support: Label information
Editorial draft · Qualified scientific review pending.
What it is
PubChem links this name to glycyl-prolyl-hydroxyproline, a chain of three amino-acid units.
Tripeptide-29: chemical identity record
Why it is used
NIOD lists it in its peptide blend, but does not isolate its individual contribution on the label.
CAIS3 US product label
What the evidence means
The recorded sources establish identity and label presence. They do not establish a separate visible benefit from this ingredient in this serum.
Tripeptide-29: chemical identity record
CAIS3 US product label
Precautions and possible reactions
An ingredient-specific reaction rate is not established by the sources recorded here. Check the whole product, not just this name.
Cosmetics can cause irritation or allergic reactions. Check the full ingredient list and follow product directions.
CAIS3 US product label
Allergens in cosmetics: reactions and consumer precautions
What this means for your comparison
29 does not mean stronger or better than a peptide numbered 1. The number distinguishes the ingredient.
Sources checked 2026-10-19. Ingredient information is separate from testing a finished serum.
Read the full ingredient guide
Tripeptide-1 Copper Acetate
A copper-containing peptide name on NIOD’s label; its wording differs from Copper Tripeptide-1. Chemical equivalence has not been established in this review.
Full guide
INGREDIENT, EXPLAINED
Tripeptide-1 Copper Acetate
A copper-containing peptide name on NIOD’s label; its wording differs from Copper Tripeptide-1. Chemical equivalence has not been established in this review.
Type of support: Label information
Editorial draft · Qualified scientific review pending.
What it is
This exact name appears on the NIOD ingredient list. We keep it separate from differently named copper forms.
CAIS3 US product label
Why it is used
NIOD markets its copper-peptide technology for the appearance of aging skin. That product claim does not isolate the benefit of this exact ingredient.
CAIS3 US product label
What the evidence means
A manufacturer label and product description are recorded. No independent comparison of these two copper ingredient forms is established here.
CAIS3 US product label
Precautions and possible reactions
No ingredient-specific reaction rate is recorded for this exact label name. Do not borrow a safety conclusion from a differently named copper form.
Cosmetics can cause irritation or allergic reactions. Check the full ingredient list and follow product directions.
CAIS3 US product label
Allergens in cosmetics: reactions and consumer precautions
What this means for your comparison
Different copper names are a label difference; they are not proof that one serum is better.
Sources checked 2026-10-19. Ingredient information is separate from testing a finished serum.
Read the full ingredient guide
Tripeptide-1 Acetate
Another peptide form on NIOD’s label. Its name does not state how much is present.
Full guide
INGREDIENT, EXPLAINED
Tripeptide-1 Acetate
Another peptide form on NIOD’s label. Its name does not state how much is present.
Type of support: Label information
Editorial draft · Qualified scientific review pending.
What it is
A distinct ingredient name recorded in NIOD’s formula, alongside its copper-containing peptide name.
CAIS3 US product label
Why it is used
The brand describes GHK alongside copper-peptide technology. The individual contribution of this exact label ingredient is not demonstrated in the recorded sources.
CAIS3 US product label
What the evidence means
The source is a manufacturer description, not a study isolating this ingredient in this serum.
CAIS3 US product label
Precautions and possible reactions
The recorded label does not establish an individual side-effect rate or a complete safety assessment for this exact form.
Cosmetics can cause irritation or allergic reactions. Check the full ingredient list and follow product directions.
CAIS3 US product label
Allergens in cosmetics: reactions and consumer precautions
What this means for your comparison
Do not read the ingredient name as an individual percentage or as evidence of a stronger product.
Sources checked 2026-10-19. Ingredient information is separate from testing a finished serum.
Read the full ingredient guide
Acetyl Tetrapeptide-2
A skin-conditioning peptide marketed by its supplier for firmer-looking skin.
Full guide
INGREDIENT, EXPLAINED
Acetyl Tetrapeptide-2
A skin-conditioning peptide marketed by its supplier for firmer-looking skin.
Type of support: Supplier description
Editorial draft · Qualified scientific review pending.
What it is
Lubrizol identifies it in Uplevity peptide solution and in a sample cosmetic formula as a skin-conditioning ingredient.
Example formulation identifying Acetyl Tetrapeptide-2 as a skin-conditioning agent
Why it is used
Its supplier markets it for firmer-looking skin. A supplier’s intended use is different from a demonstrated result in NIOD’s serum.
Uplevity: supplier description of Acetyl Tetrapeptide-2
What the evidence means
The recorded support is supplier information. It does not establish an independent, ingredient-only trial in this serum.
Uplevity: supplier description of Acetyl Tetrapeptide-2
Example formulation identifying Acetyl Tetrapeptide-2 as a skin-conditioning agent
Precautions and possible reactions
The supplier’s sample formula is not a tested commercial product. It does not establish the safety or reaction rate of NIOD’s finished serum.
Cosmetics can cause irritation or allergic reactions. Check the full ingredient list and follow product directions.
Example formulation identifying Acetyl Tetrapeptide-2 as a skin-conditioning agent
Allergens in cosmetics: reactions and consumer precautions
What this means for your comparison
Firming is an intended cosmetic use described by the supplier, not a promised result for every product.
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 label ingredients, not the complete INCI list. See the manufacturer for the full formula. Selected label ingredients, not the complete INCI list. Exact names are preserved without assuming chemical equivalence.

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

What the brand tells us

AThe Ordinary

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

BNIOD

The manufacturer describes 1% GHK-Cu and 1% GHK. These are brand disclosures, not independently assayed concentrations.

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

AThe OrdinaryThe Ordinary label Label checked 2026-10-20

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

View product profile

BNIODNIOD label Label checked 2026-10-20

Official US 30 mL price observed after selecting 30 mL on 2026-10-20: USD 93. Excludes tax and shipping; dated observation, not a live price or performance ranking.

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.

CAIS3 US product label NIOD · Manufacturer / supplier information · Accessed 2026-10-20

Multi-Peptide + Copper Peptides US product label The Ordinary · 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