SkinCeuticals P-TIOX vs The Ordinary Multi-Peptide + HA

Editorial draft · Scientific review pending Updated 2026-10-20

SkinCeuticals

P-TIOX Anti-Wrinkle Serum

30 mL · Facial serum

$150.00USD · Recorded 2026-10-20

The Ordinary

Multi-Peptide + HA Serum

30 mL · Facial serum

$19.90USD · Recorded 2026-10-19

Two formulas. A closer look at what matters. Change products

THE SHORT VERSION

What matters in 30 seconds.

The key findings, without the chemistry lesson.

What is documented?

Both records are 30 mL serums. P-TIOX’s selected peptide names come from a UK label; a complete US ingredient list was not retrieved.[3][6][4]

Manufacturer labels

See ingredient differences

What does it mean for your purchase?

Compare the dated unit costs and check your regional packaging. The P-TIOX studies concern different settings and do not establish an advantage over this Ordinary serum.[3][6][4]

Recorded prices · not a performance ranking

Understand the price

What has not been demonstrated?

The selected formula studies do not establish that P-TIOX outperforms Multi-Peptide + HA or replaces injections. Scientific review is still pending.[1][2]

Editorial interpretation of selected research

Check the evidence

Before you choose: neither finished formula is established as safer or more effective by this review. If you have a confirmed ingredient allergy, check the full label before buying.

Understand the evidence

SIDE BY SIDE

Ingredients, price and the gaps.

Compare selected label facts. Tap an ingredient to understand its name.

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: SkinCeuticals and The Ordinary
Compare the detailsTwo products. The same questions.	A SkinCeuticalsP-TIOX Anti-Wrinkle Serum	B The OrdinaryMulti-Peptide + HA Serum
Product basics
Presentation	30 mL	30 mL
Format	Multi-ingredient facial serum	Water-based serum
How the brand says to use it	The US brand describes twice-daily use. Follow current package directions and your clinician’s instructions around procedures.Manufacturer directions, not a personalized routine.	The brand directs a few drops in the morning and evening, on unbroken skin, and advises patch testing. Read its current compatibility exclusions before combining with other products.Manufacturer directions, not a personalized routine.
Price & value
Recorded price	$150.00 USDPrice recorded 2026-10-20Excludes tax and shipping.	$19.90 USDPrice recorded 2026-10-19Excludes tax and shipping.
Price per mL	$5.00 / mL	$0.66 / 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 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 Selected peptide names from the brand’s UK P-TIOX label. The complete US INCI was not retrieved; regional equivalence is not assumed. Confirm your current package.	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 Palmitoyl Tripeptide-38 A peptide associated with the commercial blend name Matrixyl synthe’6. Full guide INGREDIENT, EXPLAINED Palmitoyl Tripeptide-38 A peptide associated with the commercial blend name Matrixyl synthe’6. Type of support: Label information Editorial draft · Qualified scientific review pending. What it is This ingredient name appears on the recorded Matrixyl, Multi-Peptide + HA and Power Peptides labels. Matrixyl 10% + HA — US manufacturer label and 30 mL offer Multi-Peptide + HA Serum — US manufacturer label and 30 mL offer Power Peptides — US manufacturer label and 30 mL offer Why it is used The brands place it in blends marketed for the appearance of lines. This does not isolate its contribution to a finished serum. Matrixyl 10% + HA — US manufacturer label and 30 mL offer Multi-Peptide + HA Serum — US manufacturer label and 30 mL offer Power Peptides — US manufacturer label and 30 mL offer What the evidence means The recorded support is manufacturer information about labels and ingredient systems. It does not establish how well this ingredient alone works in these finished serums. Matrixyl 10% + HA — US manufacturer label and 30 mL offer Multi-Peptide + HA Serum — US manufacturer label and 30 mL offer Power Peptides — US manufacturer label and 30 mL offer Precautions and possible reactions An ingredient-specific side-effect rate is not established by these sources. Check the complete product label and follow its current instructions. Cosmetics can cause irritation or allergic reactions. Check the full ingredient list and follow product directions. Matrixyl 10% + HA — US manufacturer label and 30 mL offer Multi-Peptide + HA Serum — US manufacturer label and 30 mL offer Power Peptides — US manufacturer label and 30 mL offer Allergens in cosmetics: reactions and consumer precautions What this means for your comparison Recognize the exact ingredient name, then consider the whole product. Neither its number nor a blend percentage tells us which serum will work better for you. Sources checked 2026-10-19. Ingredient information is separate from testing a finished serum. Read the full ingredient guide Selected label peptides, not the complete INCI list. Other peptides and non-peptide ingredients may be omitted. 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.	The US page gives percentages for non-peptide actives. Individual pure-peptide amounts are not verified here.Manufacturer disclosure; not independently measured.Individual amounts not verified	Several peptides are listed, but their separate amounts are not disclosed. HA means hyaluronic acid; it is not another peptide.Manufacturer disclosure; not independently measured.Individual amounts not verified
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	SkinCeuticals 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.

What do the label differences mean?Exact names, disclosures and cost limits

A whole formula, not just peptides

The P-TIOX brand description includes PHA, niacinamide and laminaria extract. Its percentages are not a pure-peptide strength ranking.[3]

Market-specific label limit

P-TIOX’s selected peptide names were read from a UK brand page. Check your US packaging before assuming the same full formula.[4][3]

Documented differences

Both records are 30 mL. P-TIOX names non-peptide actives; its selected UK peptide list overlaps with The Ordinary at Acetyl Hexapeptide-8. The full US P-TIOX INCI requires confirmation.[3][6]

Use this comparison for your decision

Separate cost from benefit

Compare the dated unit prices independently from the research; price is not a clinical outcome.[3][6]

Confirm the exact product

This record covers the 30 mL serum, not P-TIOX Cream or a bundle.[3]

A CRITICAL LOOK AT THE EVIDENCE

Evidence, explained.

What do the source labels mean?

Human studies describe what happened in their participants and tested preparation. Laboratory studies examine a model, not clinical results in shoppers. Case reports describe individual events, not how often they occur.

Safety assessments review specified uses and concentrations. Manufacturer labels identify recorded product facts. Neither is a guarantee of results or individual tolerance. Source type is not a quality score.

Benefits

Source type: Human formula study

Formula studies report improvements, but no winner against The Ordinary is established.[1]

Read the evidence and what it means

Source type: Human formula study

The 2026 Zhu paper includes two separate clinical groups (50 and 42 participants). Its abstract reports improved appearance measures for a formula with several active ingredients.[1]

Editorial interpretation

This does not isolate the peptide effect or establish superiority to another serum.[1]

Precautions

Source type: Human trial

A post-injection trial is a specific setting, not a blanket safety guarantee.[2]

Read the evidence and what it means

Source type: Human trial

The adjunct study used randomized split-face vehicle comparison around botulinum toxin treatment. Its findings should stay within that context.[2]

Editorial interpretation

Detailed adverse-event tables were not reviewed. This comparison cannot assign personal tolerance or recommend post-procedure use.[2]

What remains unknown

Source type: Human formula study · Human trial

Short observations do not settle long-term use or the contribution of each ingredient.[1][2]

Read the evidence and what it means

Editorial interpretation

Multiple ingredients, distinct study designs and limited observation prevent conclusions about years of use or which ingredient caused an improvement.[1][2]

Value

Source type: Human formula study · Human trial

A higher price does not establish greater clinical benefit.[1][2]

Read the evidence and what it means

Editorial interpretation

Neither selected publication is a P-TIOX-versus-The-Ordinary trial. Keep the unit-cost calculation separate from comparative efficacy.[1][2]

Which label facts connect this research to these products?

Source type: Manufacturer label · Brand-reported study

The US page identifies the 30 mL serum and offer. Selected peptide names come from the UK brand label, with that market limitation preserved. The manufacturer’s publication index links the formula research to P-TIOX.[3][4][5][6]

Manufacturer links establish ingredient presence only. Scientific references support the research statements above. Formulas can change; check your purchased packaging.

Study dataDesign, sample, duration and what each source can tell us

For a closer look at the research behind this review. These sources answer different questions: they are not head-to-head tests of the two retail serums. Their results cannot be combined into a product ranking.

On smaller screens, scroll the table sideways. Open a numbered reference for access limits, funding context and source details.

Studies and safety assessments behind this comparison
Source & design	Sample or model	Duration	Reported finding	How to interpret it
Human formulation study2026[1]	Separate clinical groups: 50 static-wrinkle and 42 dynamic-wrinkle participants, plus ex vivo skin work. Not assumed to be 92 unique participants.	12 weeks reported for static outcomes; dynamic follow-up not extracted	The abstract reports improved wrinkle and skin-quality measures for a multi-ingredient formula.	Multi-ingredient formula; detailed clinical control methods not verified from abstract. Not an isolated peptide or retail head-to-head test.
Human clinical trial2026[2]	Randomized split-face vehicle comparison around injections; sample size not extracted in this check.	10 weeks	The report describes improved post-procedure wrinkle and skin-quality measures versus vehicle.	Adjunct setting, not proof that the serum replaces injections. SkinCeuticals-linked research.

Reading limit: some records were checked through abstracts or repository summaries, not full papers. See each reference for exactly what was inspected. Scientific review remains pending.

A LITTLE MORE CLARITY

Questions about these products

Does published research prove P-TIOX is better than The Ordinary?

No head-to-head study between these retail serums was reviewed. Studies of one formula or a post-injection setting cannot establish that comparison.[1][2]

Does the post-injection study show the serum replaces injections?

No. That randomized study examined the serum around botulinum toxin treatment, rather than replacing the procedure.[2]

Check the original sources

Research and safety assessments are separate from manufacturer labels.

How this comparison was preparedScope, review status and limitations

What we cannot tell from the label

Selected regional label names; limited source inspection; no complete literature review, independent assay or direct product trial. Editorial and scientific review pending.

Read our methodology

CHECK THE CURRENT OFFER

Where to buy

Check the exact size, current price and shipping at the manufacturer.

SkinCeuticalsP-TIOX Anti-Wrinkle Serum30 mL · $150.00 USD · Recorded 2026-10-20

View P-TIOX Anti-Wrinkle Serum · 30 mL at SkinCeuticals Select the 30 mL option on the retailer’s page. Confirm the current price before checkout.

The OrdinaryMulti-Peptide + HA Serum30 mL · $19.90 USD · Recorded 2026-10-19

View Multi-Peptide + HA Serum · 30 mL at The Ordinary Select the 30 mL option on the retailer’s page. Confirm the current price before checkout.

No affiliate partnerships are active. Manufacturer links are ordinary links; we do not earn commissions from them. Recorded prices exclude tax and shipping and may have changed.

References

Human formulation study
Zhu M, He X, Zhu Z, et al. 2026. International Journal of Cosmetic Science 48(5):913–925.
Serum with acetyl hexapeptide-8, dipeptide and gluconolactone: ex vivo and clinical studies
DOI: 10.1111/ics.70087
International Journal of Cosmetic Science / PubMed · Reference checked 2026-10-20
Evidence and limitations for reference 1
What was studied
Ex vivo skin work plus separate clinical studies: n=50 (static wrinkles), n=42 (dynamic wrinkles).
What was reported
The abstract reports improved wrinkle and skin-quality measures for a multi-ingredient formula.
What this supports here
A formula-level result, not an isolated peptide effect.
What it cannot establish
The abstract does not establish a randomized placebo comparison for these clinical arms. No retail head-to-head comparison or years-long safety follow-up was reviewed.
Commercial context and disclosures
Authors list L’Oréal research affiliations; they declare no conflicts of interest. This is not treated as independent replication.
What we inspected
PubMed abstract, affiliations, figure captions and conflict statement inspected. Detailed full-text methods were not verified.
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Human clinical trial
Lupin M, Brieva P, Dayeh NR, White S 2026. Clinical, Cosmetic and Investigational Dermatology 19:581831.
Neuropeptide serum around botulinum toxin injection: randomized split-face study
DOI: 10.2147/CCID.S581831
Clinical, Cosmetic and Investigational Dermatology / PubMed · Reference checked 2026-10-20
Evidence and limitations for reference 2
What was studied
10-week randomized double-blind vehicle-controlled split-face study around botulinum toxin injection.
What was reported
The report describes improved post-procedure wrinkle and skin-quality measures versus vehicle.
What this supports here
Evidence for an adjunct in a procedural setting, not serum-only equivalence to injections.
What it cannot establish
Sample size and detailed methods were not extracted in this check. No comparison with The Ordinary or conclusion about replacing the procedure.
Commercial context and disclosures
Coauthors have SkinCeuticals affiliations; the disclosure states SkinCeuticals funded Lupin’s research.
What we inspected
PubMed abstract and indexed publisher disclosure inspected; complete protocol and adverse-event tables not reviewed.
↩ 1 ↩ 2 ↩ 3 ↩ 4 ↩ 5 ↩ 6 ↩ 7 ↩ 8 ↩ 9 ↩ 10 ↩ 11 ↩ 12 ↩ 13
Manufacturer labelP-TIOX Anti-Wrinkle Serum: US presentation and offer
SkinCeuticals · Reference checked 2026-10-20
Evidence and limitations for reference 3
What this supports here
US 30 mL presentation, displayed USD 150 one-time price and non-peptide percentage disclosures.
What it cannot establish
Commercial information. Regional formulas, offers and stock may change. Not an assay or independent efficacy evaluation.
Commercial context and disclosures
Published by the brand or its parent company.
What we inspected
Public page text inspected. US full-INCI popup was not retrieved.
↩ 1 ↩ 2 ↩ 3 ↩ 4 ↩ 5 ↩ 6 ↩ 7 ↩ 8
Manufacturer labelP-TIOX ingredient list on the UK Power Pair page
SkinCeuticals UK · Reference checked 2026-10-20
Evidence and limitations for reference 4
What this supports here
Selected peptide names on a UK brand label; not verification of the complete US formula.
What it cannot establish
Commercial information. Regional formulas, offers and stock may change. Not an assay or independent efficacy evaluation.
Commercial context and disclosures
Published by the brand or its parent company.
What we inspected
Public page text inspected. US full-INCI popup was not retrieved.
↩ 1 ↩ 2 ↩ 3 ↩ 4
Manufacturer study summarySkinCeuticals clinical publication index
L’Oréal Dermatological Beauty · Reference checked 2026-10-20
Evidence and limitations for reference 5
What this supports here
Brand association of the cited publications with P-TIOX; not independent clinical validation.
What it cannot establish
Commercial information. Regional formulas, offers and stock may change. Not an assay or independent efficacy evaluation.
Commercial context and disclosures
Published by the brand or its parent company.
What we inspected
Public page text inspected. US full-INCI popup was not retrieved.
↩ 1
Manufacturer labelMulti-Peptide + HA Serum — US manufacturer label and 30 mL offer
The Ordinary · Reference checked 2026-10-20
Evidence and limitations for reference 6
What this supports here
Supports the selected ingredient names and identity of Multi-Peptide + HA.
What it cannot establish
The checked label does not supply a separate amount for every peptide or independent comparative outcomes.
Commercial context and disclosures
Published by the seller and manufacturer.
What we inspected
Public US product page
↩ 1 ↩ 2 ↩ 3 ↩ 4 ↩ 5