Cosmetic Peptide

Matrixyl

Palmitoyl pentapeptide-4 · Pal-KTTKS · Matrixyl 3000

Matrixyl (Palmitoyl Pentapeptide-4) is a radically effective lipopeptide and the reigning gold standard in structural dermal remodeling. Operating as a targeted cell-signaling matrikine, it essentially tricks the skin into believing it has suffered traumatic damage. It is utilized fundamentally in high-end anti-aging regimens to force a massive, natural localized overproduction of youthful collagen, violently reversing skin thinning and dermal collapse.

Not FDA-approved - research chemical

Reviewed by CalcMyPeptide Editorial Team

·Last updated: August 2026·Evidence: Low·1 peer-reviewed citation

Typical research dose

2-8% topical solution

Frequency

1-2× daily (topical)

Half-life

Topical application (variable)

Common vials

N/A (oral)

CAS

N/A (Blend)

Molecular weight

Variable

Use-case scores

0–10 against the evidence we have, not a gym ranking. Hidden domains do not apply here.

Skin / cosmetic4/10
Widely used matrikine in cosmetics. Not GHK-Cu. Not a SubQ peptide.

Compound card

Class: Palmitoyl pentapeptide-4 (topical matrikine cosmetic)
Formula: Palmitoyl Tripeptide-1 / Palmitoyl Tetrapeptide-7 blend
Status: Not FDA-approved · research use

How it works

Matrixyl (specifically Matrixyl 3000, which contains Palmitoyl Tripeptide-1 and Palmitoyl Tetrapeptide-7) is a cosmetically engineered blend of matrikine peptides. Matrikines are messenger peptides that regulate cell activities by interacting with specific receptors.

Instead of paralyzing muscles (like Argireline), Matrixyl acts on fibroblasts in the dermis. It tricks the skin into believing that collagen has broken down, which strongly stimulates the neocollagenesis process. This significantly ramps up the production of collagen I, III, IV, fibronectin, and hyaluronic acid, thickening the skin and filling in static wrinkles from the inside out.

Source: PMID: 15698725

Background & History

Matrixyl (palmitoyl pentapeptide-4) was developed by Sederma (France) and became one of the most extensively studied cosmetic peptides. The KTTKS sequence was identified from type I procollagen propeptide fragments, and its palmitoylation was a key innovation enabling skin penetration. Clinical trials published in the International Journal of Cosmetic Science demonstrated statistically significant wrinkle depth reduction. "Matrixyl 3000" is a later formulation combining palmitoyl tripeptide-1 and palmitoyl tetrapeptide-7.

Research Use Cases

✓Collagen stimulation
✓Wrinkle depth reduction
✓Skin firmness improvement
✓ECM replenishment
✓Photo-aging recovery

Dosing

Phase	Dose	Frequency	Notes
Cosmetic Use	3% - 8% concentration	Topical, 1-2x daily	Gold-standard structural peptide for cosmetics. Frequently combined with copper peptides or Argireline.

Administration

Route / form

Topical serum

Timing

Morning and evening.

Empty stomach?

No - Food timing is not critical.

Timeline

Month 1-2

Skin density and elasticity visibly improve.

Month 3-6

Reduction in the depth and volume of static wrinkles (wrinkles present at rest).

Who it is for

Static Wrinkles / Skin Structure

Moderate

Stimulates Type I collagen matrix synthesis.

Safety & Considerations

Topical cosmetic. Safely used in millions of commercial skincare formulations. No local or systemic toxicity.

Regulatory & Legal Status

FDA Status (US)

Research Only

WADA Status (2026)

Not Listed

Not currently on the WADA 2026 Prohibited List. Policies may change - verify before competition.

Classification

Research Chemical

US Compounding: Not eligible / not available

⚠️ This information is for educational purposes only and may not reflect the most current regulatory updates. Always verify with official FDA, WADA, and jurisdiction-specific sources before use.

Limits of current evidence

Matrixyl 3000 is a pair of palmitoyl peptides. Read the INCI.

Verdict

Matrixyl is palmitoyl pentapeptide-4 (and related palmitoyl peptides in the trademark family). Topical cosmetic. Not the GLOW injectable blend.

Interactions & Contraindications

Topical only. Stable in most cosmetic formulations. Compatible with retinoids, antioxidants, and other peptides. The palmitoyl chain may influence absorption from different vehicle types.

Synergies & Common Stacks

+ Argireline →

Matrikine plus SNARE-complex cosmetic peptides. Complementary INCI claims, not a wrinkle protocol with a drug label.

+ GHK-Cu →

Matrixyl and GHK-Cu both stimulate collagen synthesis but through different mechanisms: Matrixyl via matrikine signaling, GHK-Cu via gene expression modulation.

Frequently Asked Questions

Should I use Matrixyl or Argireline?▼

They do entirely different things. Argireline treats dynamic wrinkles (caused by movement, like forehead lines) by relaxing the muscle. Matrixyl treats static wrinkles by physically rebuilding the collagen matrix of the skin. They are often used together.

References

Gorouhi F, Maibach HI “"Topical peptide treatments with effective anti-aging results".” International Journal of Cosmetic Science (2009). PMID: 19735523

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