Acetyl Tetrapeptide-2 is a lab-derived chain of four amino acids designed for topical skincare. Firming-focused formulas include it to boost skin feel and perceived resilience, but the current performance data is modest.
A peptide that may boost elasticity for a springier skin feel.
Category
Firming, Anti-aging, Tone/Texture
Type
Peptide
Ratings
Overall Rating
Fair
Comedogenic Risk
None
Not typically evaluated for comedogenicity — no standardized rating available.
Our take
Is Acetyl Tetrapeptide-2 a Good Ingredient?
Rated Fair due to limited independent clinical data and typically modest improvements in firmness. Minor irritation or sensitization is possible for reactive skin.
What it does
Skin Benefits
May improve the look of elasticity and support a springier skin feel over time. Reported changes are generally subtle based on available evidence.
Where you'll find it
Uses in Skincare & Cosmetics
Found in firming moisturizers, neck and décolleté creams, and body lotions targeting slackness. Also used in leave-on boosters layered into routines.
Before you use it
Safety
Usually low irritation, but redness or itching can occur in sensitive individuals; patch testing is sensible. No specific regulatory limits are commonly cited for standard cosmetic use.