Cosmetics Precipitated silica helps creating innovative solutions for the cosmetic and toiletry industries. It is used in skin care and make-up product applications for better shine control and reduction of excess sebum, which not only is a contributing factor to acne, but can also cause undesirable make-up shade change. A variety of technical approaches are used to reduce and control body odor in underarm product applications. Silica is used as a deo ingredient offering an efficient and effective means of controlling underarm odor through a non-antimicrobial mechanism.