BTMS (Behentrimonium Methosulfate) is a cationic emulsifier of plant origin used to create hair care products and creams. It provides a soft texture, facilitates detangling, and leaves hair supple, silky, and easy to style. This essential ingredient in cosmetic formulations, particularly popular for conditioners, hair masks, leave-ins, and creams, effectively blends the aqueous and oil phases while providing conditioning properties.