BP-50TMS is a cosmetic-grade black iron oxide powder treated with Trimethylsiloxysilicate, designed for long-lasting and high-performance formulations. With strong oil repellency, excellent color strength, and bidirectional adsorption technology, it adheres firmly to the skin while resisting sebum and sweat, ensuring a durable and uniform application. Ideal for oil-dispersible systems, BP-50TMS is well-suited for use in foundations, eyeliners, and other long-wear makeup products, providing superior film formation and formulation stability.