BEHENTRIMONIUM METHOSULFATE (and) CETYL ALCOHOL

BTMS-50 is a self-emulsifying blend of behentrimonium methosulfate (a quaternary ammonium salt derived from behenic acid, typically sourced from rapeseed oil) and cetyl alcohol, where the '50' refers to the approximately 50% active quaternary compound content. Unlike traditional cationic emulsifiers, BTMS-50 produces exceptionally light, non-greasy emulsions with a characteristic silky slip, making it a gold standard in conditioning hair care and skin formulations. Formulators prize it for its ability to create stable oil-in-water emulsions that simultaneously deliver substantive conditioning benefits to hair and skin, while being notably milder and less irritating than older quaternary ammonium compounds like BTMS-25 alternatives.