Tridecapeptide-1 is a synthetic peptide made of 13 amino acids used in cosmetic formulas. Anti-aging and firming products add it to improve the look of smoothness and bounce, though supporting cosmetic evidence is still limited.
Not typically evaluated for comedogenicity — no standardized rating available.
Our take
Is Tridecapeptide-1 a Good Ingredient?
It rates Fair because cosmetic evidence is still preliminary and real-world benefits are inconsistent; peptides of this size can also face stability hurdles without supportive formulation. Minor irritation or sensitization is uncommon but possible, especially in concentrated serums or around the eyes.
What it does
Skin Benefits
May help skin look more elastic and refined, lending a smoother, bouncier appearance, though evidence in cosmetics is still emerging and results can vary.
Where you'll find it
Uses in Skincare & Cosmetics
Commonly included in serums and eye creams aimed at early signs of aging, and also used in lightweight moisturizers to support a firmer-looking complexion.
Before you use it
Safety
Generally considered low-irritation, but patch testing is prudent for sensitive skin or use near the eye area. No known specific regulatory restrictions at typical cosmetic levels. Discontinue if redness or stinging occurs.