INCI · other · CIR review pending · used in 1 products
Lysine(400 Ppm)
Lysine is an essential amino acid that the human body cannot synthesize on its own and must obtain through diet or topical application. In cosmetics, it is used as a skin-conditioning agent and is found in a wide range of products including serums, cleansers, masks, and toners. It appears frequently alongside other amino acids and peptide complexes in formulations targeting skin and hair care.
Evidence level
weakEWG score
—Comedogenic
—Category
other● Benefits
As an amino acid, lysine is understood to support the skin's natural building blocks, contributing to conditioning and structural support. The source page does not provide explicit clinical benefit claims for topical lysine beyond its presence in skin- and hair-care formulations.
hydratingbarrier-supportanti-aging
● Cautions
