Soft powder is a type of mineral composed of hydrated magnesium silicate. It is often used in cosmetics, body powders, and other personal care products. The two crossword solutions for the term 'soft powder' are TALC (4 letters) and talcum (6 letters). TALC is a soft, white, powdery mineral that is composed of hydrated magnesium silicate. Talcum is a type of TALC that is used in a variety of personal care products, such as body powders, baby powders, and cosmetics.