Nonapeptide-1 is a lab-designed peptide consisting of nine amino acids and produced through biotechnology, included in brightening formulas to improve the look of uneven tone and dark spots, though independent clinical evidence remains limited.
A lab-made peptide used to fade dark spots and even out tone.
Category
Brightening, Hyperpigmentation, Tone/Texture
Type
Peptide
Ratings
Overall Rating
Fair
Comedogenic Risk
None
Not typically evaluated for comedogenicity — no standardized rating available.
Our take
Is Nonapeptide-1 a Good Ingredient?
Early data suggests it may improve the look of uneven tone, but independent clinical support is limited and results can be modest, which is why it rates Fair. The main risk here is underperformance rather than irritation.
What it does
Skin Benefits
Targets the appearance of blotchy pigmentation for a more uniform look, and can be a gentler option for those avoiding stronger brighteners.
Where you'll find it
Uses in Skincare & Cosmetics
Featured in brightening serums, spot correctors, essences, and eye creams, often alongside niacinamide or soothing agents.
Before you use it
Safety
Generally considered low irritation in cosmetic use. Patch test if sensitive; no well-established regulatory restrictions specific to this peptide.