INCI · antioxidant · CIR review pending · used in 1 products
Tbhq
TBHQ (tert-butylhydroquinone) is a synthetic phenolic antioxidant with the CAS number 1948-33-0. Its IUPAC name is 2-(1,1-Dimethylethyl)-1,4-benzenediol. According to CosIng, it is used in cosmetics for antioxidant, masking, and perfuming functions.
Evidence level
weakEWG score
—Comedogenic
—Category
antioxidant● Benefits
TBHQ functions primarily as an antioxidant in cosmetic formulations, helping to protect product ingredients from oxidative degradation. It also serves masking and perfuming roles according to its official CosIng listing.
antioxidant
● Cautions
TBHQ is a synthetic antioxidant; the source does not detail specific cautions or contraindications for topical cosmetic use.
