Talc is a purified hydrated magnesium silicate widely used as a dissolution retardant in the development of controlled release products. Talc is also used as a lubricant in tablet formulations in a novel powder coating for extended-release pellets and as an adsorbent. Talc is additionally used to clarify liquids and is also used in cosmetics and food products mainly for its lubricant properties. For - Pharmaceuticals & Cosmetics Industry Grade - BP / USP