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ACETYL TETRAPEPTIDE-9.

Valuable CAS - / SKIN CONDITIONING

A signal peptide that enhances skin density and firmness by stimulating key structural proteins. Clinical studies show it visibly thickens and firms skin.

Cell-communicating ingredient Skin-conditioning Improves skin density Enhances firmness Collagen synthesis booster Proteoglycan synthesis booster

Science

Targets the proteoglycan Lumican, stimulating its synthesis along with Collagen Type I. This facilitates proper collagen fiber assembly and anchoring, improving dermal structure.


Research

High confidence
Effective range 0.0015–0.0025%
Optimal

0.0025%

Key findings

  1. 01 0.0015%–0.0025% pure powder increased lumican synthesis by 115% and organized collagen fibers, leading to increased dermal density.
  2. 02 A 0.1% Dermican liquid blend treatment resulted in visibly thicker and firmer skin for 17 female volunteers compared to placebo.

Transparency

Not commonly dusted

The Formula

Solubility
Water
Optimal pH 4 – 6
0 7 14

Stability

Stable within typical cosmetic pH range of 4.0-6.0 for 2+ years with proper storage. It is sensitive to extreme heat, strong oxidizing agents, and strong acids/bases.

Conflicts

  • Strong oxidizing agents
  • Strong acids/bases
  • Proteolytic enzymes

Safety

CIR Status
Not reviewed
Max tested
10%
Sensitization risk Low

While not formally CIR reviewed, it's considered safe for cosmetic use up to 10% (as a commercial blend). Raw material SDS classifies it as non-hazardous.


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

This peptide is a valuable asset for anti-aging and firming formulations, demonstrably improving skin density and firmness through targeted protein synthesis.


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