Acetyl Octapeptide-3 is a synthetic eight-amino-acid peptide, often listed as SNAP-8 in cosmetics. Serums and creams use it to reduce the appearance of expression lines, though independent evidence is limited.
Known as SNAP-8, it may soften the look of expression lines.
Category
Anti-aging, Tone/Texture, Firming
Type
Peptide
Ingredient Ratings
Overall Rating
Fair
Comedogenic Risk
None
Skin Benefits
May soften the look of forehead and smile lines for a temporarily smoother appearance. Available data is preliminary, so effects are usually modest.
Uses In Skincare & Cosmetics
Included in lightweight serums, gel creams, and primer-style treatments that blur lines under makeup. Often paired with humectants or film-formers in leave-on formulas.
Comedogenic Rating
This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.
Safety
Generally well tolerated, but sensitive skin may experience transient redness or stinging; patch testing is prudent. No widely recognized regulatory restrictions at typical cosmetic levels.
Is Acetyl Octapeptide-3 a Good Ingredient?
This lands at Fair because most support comes from supplier data and small studies, so results tend to be mild and short-lived. A small risk of irritation exists, especially near the eye area or at higher use levels.