Hexapeptide-9 is a synthetic six-amino-acid peptide used in topical skincare. It's included to improve surface smoothness and a firmer feel while softening the look of fine lines; evidence is early, so results are modest and variable.
Promotes a smoother, more supple appearance and refines the look of fine surface irregularities. Any firming effect is typically modest and depends on consistent use.
Uses In Skincare & Cosmetics
Used in anti-aging serums, creams, and ampoules focused on texture renewal. Also appears in sheet masks for a quick smoothing feel.
Comedogenic Rating
This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.
Safety
Usually well tolerated with low irritation potential; sensitive skin may see transient redness. Start slowly if layering multiple active ingredients.
Is Hexapeptide-9 a Good Ingredient?
It's Fair because the data for smoothing and firming is preliminary and the effect sizes are small, with a minor risk of irritation or sensitization for some users, which keeps expectations, and the rating, modest.