INCI · other · CIR review pending · used in 5 products
Methionine
Methionine is a sulfur-containing essential amino acid with the CAS number 59-51-8. It is used in cosmetic and personal care formulations primarily for its antistatic, hair conditioning, and skin conditioning properties as listed in the official CosIng database. It appears frequently in hair care products such as shampoos and serums, as well as in skin serums and moisturizers.
Evidence level
weakEWG score
—Comedogenic
—Category
other● Benefits
Methionine functions as a hair and skin conditioner, helping to improve the texture and feel of both hair and skin. Its antistatic properties make it useful in hair care formulations to reduce flyaways and improve manageability.
hair-conditioningantistaticskin-conditioning
● Cautions
