Cetrimonium Chloride

Cetrimonium Chloride is a quaternary ammonium compound (quat) with a C16 alkyl chain that serves as a highly effective hair conditioning agent and preservative booster. Its strong cationic charge allows it to bind tightly to the negatively charged surface of damaged hair, providing excellent detangling, static reduction, and smoothness while also offering antimicrobial properties. Formulators favor it in hair conditioners and leave-in treatments for its superior substantivity and ability to improve wet and dry combing, though it must be carefully balanced to avoid buildup or incompatibility with anionic ingredients.