INCI · peptide · CIR review pending · used in 1 products
Nonapeptide-1 (0.05 Ppm)
Nonapeptide-1 is a synthetic nonapeptide composed of nine amino acids derived from arginine, lysine, methionine, phenylalanine, proline, tryptophan, and valine. It is listed under CosIng with functions of hair conditioning and skin conditioning. It appears frequently in brightening and dark spot-targeting formulations at very low concentrations (e.g., 0.05 ppm).
Evidence level
weakEWG score
—Comedogenic
—Category
peptide● Benefits
Nonapeptide-1 is primarily used in skin conditioning contexts and is commonly found in brightening and pigmentation-targeting products. Its presence in formulations alongside ingredients like alpha arbutin and vitamin C suggests a role in supporting an even skin tone, though the source does not provide direct clinical benefit claims.
brighteningskin-conditioninganti-aging
● Cautions
