Acetyl Tetrapeptide-17

Acetyl Tetrapeptide-17 is a short synthetic peptide calibrated for cosmetic use in water-based systems. Formulators use it to support a smoother, firmer-looking complexion, though independent data are modest and results aren't guaranteed.
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Ingredient Snapshot

Overview
A peptide aimed at tightening skin and softening fine lines.
Category
Firming, Tone/Texture, Anti-aging
Type
Peptide

Ingredient Ratings

Overall Rating

Fair

Comedogenic Risk

None

Skin Benefits

Targets the look of fine lines and laxity for a tighter, more polished appearance; evidence beyond supplier data is still developing.

Uses In Skincare & Cosmetics

Common in anti-aging serums, booster ampoules, and gel creams formulated for overall skin rejuvenation.

Comedogenic Rating

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

Safety

Low overall hazard profile, but transient irritation can occur, especially on reactive skin or near the eye area. Patch testing is advisable; no notable regulatory limitations are widely recognized.

Is Acetyl Tetrapeptide-17 a Good Ingredient?

It rates Fair due to modest, largely supplier-derived support and limited peer-reviewed data; any firming/smoothing effects are likely subtle and formula-dependent. A small risk of irritation exists for sensitive users from the peptide or accompanying preservatives.