Acetyl Tetrapeptide-11

Acetyl Tetrapeptide-11 is a lab-designed, water-soluble peptide used in topical formulas. It's included to improve the look of texture and firmness in mature skin, but the published evidence is limited and results can vary.
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Ingredient Snapshot

Overview
A peptide that may firm skin and refine its texture gradually.
Category
Firming, Tone/Texture, Anti-aging
Type
Peptide

Ingredient Ratings

Overall Rating

Fair

Comedogenic Risk

None

Skin Benefits

May help skin feel firmer and look more refined with a smoother surface; independent support is limited so improvements may be modest.

Uses In Skincare & Cosmetics

Often featured in firming serums, neck creams, and eye-area treatments aimed at visible slackness.

Comedogenic Rating

This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.

Safety

Generally low irritation potential, but mild stinging or redness can occur on sensitive or compromised skin. Patch test if prone to reactions; no specific regulatory restrictions are commonly cited.

Is Acetyl Tetrapeptide-11 a Good Ingredient?

Rated Fair because evidence is mostly supplier-led with limited independent studies; it may improve the look of firmness but results can be inconsistent. Irritation risk is generally low, though some users may experience sensitivity to peptides or other formula components.