BTMS

Bulk BTMS for Cosmetic Formulation

BTMS is a widely used conditioning emulsifier in the formulation of hair care and skin care products. Royal Bio supplies BTMS in bulk to cosmetic laboratories, artisan soap makers and professional formulators across Europe. This guide covers what BTMS is, how its composition works, and its main applications in professional cosmetics, helping B2B buyers assess its suitability for different formulations.

What is BTMS?

BTMS is a cosmetic compound primarily made up of behentrimonium methosulfate, cetearyl alcohol and butylene glycol. This blend of ingredients functions as an emulsifying and conditioning system, delivering softness, manageability and a pleasant skin and hair feel.

Thanks to the synergy between the cationic surfactant and the fatty alcohol, BTMS supports stable emulsion formation without relying on harsher additional surfactants. This functional profile makes it a common choice in professional formulations aimed at improving texture, styleability and the overall look of the finished product.

Main Cosmetic Uses of BTMS

Hair conditioners. BTMS serves as the go-to emulsifying base for conditioners and hair masks, since it reduces friction between hair fibers and eases detangling without weighing hair down.

Body creams and lotions. In skin care formulations, BTMS acts as a primary emulsifier, allowing oil phases to be incorporated stably while leaving a soft, non-greasy after-feel.

Hair balms and butters. It is used in leave-in balms and hair butters, where its conditioning properties help control frizz and boost shine.

Shampoos and co-wash products. Formulators include it in co-wash systems and mild shampoos to offset the cleansing effect of other surfactants, keeping hair conditioned after washing.

CAS: 81646-13-1 / 67762-27-0. EINECS: 279-791-1 / 267-008-6. INCI: BEHENTRIMONIUM METHOSULFATE / CETEARYL ALCOHOL.