Talc
Talc is a clay mineral (hydrated magnesium silicate, Mg3H2(SiO3)4) mined in several countries and used extensively in cosmetics. It is the major component of most powder makeup products such as face powders, eyeshadows, and blushers, often comprising up to 70% of the formula. Cosmetic-grade talc must be white, asbestos-free, sterilized, and have thin plates to maximize slip. It carries a Cosmetic Restrictions designation (III/59), indicating regulated use conditions.
Talc offers outstanding spreadability for smooth, even application and low covering power (translucency), preventing heavy or cakey results. Its absorbent properties help mattify skin by soaking up excess oil and moisture. It also functions as an anticaking, bulking, and opacifying agent in formulations.
Talc is a mined mineral with potential for impurities; cosmetic-grade talc must be verified asbestos-free. It carries a Cosmetic Restrictions listing (III/59), indicating regulated use. Inhalation of loose powder forms (especially by infants) is a recognized safety concern not to be overlooked.
