Magnesium silicate (MgSiO3) when hydrated is most commonly known as "talc". In the pharmaceutical industry it is used as an anticaking agent to improve powder flow in tablet compression. Talc is used cosmetically in talcum and baby powder as an adsorbent. Talc has been reported to be used in some food products, and is generally recognized as safe by the FDA.

TALC is a clay mineral, composed of hydrated magnesium silicate.Talc is used in many industries, including paper making, plastic, paint and coatings, rubber, food, electric cable, pharmaceuticals, cosmetics, and ceramics. Talc is also used as food additive or in pharmaceutical products as a glidant. In medicine, talc is used as a pleurodesis agent to prevent recurrent pleural effusion or pneumothorax.n the pharmaceutical industry, talc is used primarily as a glidant to improve powder flow in tablet compression. Of course, talc is also used by the personal care industry in talcum powder as an adsorbent and by the cosmetic industry in other types of powders and blushes.