Calamine powder is a very useful ingredient or additive for making skin care products. It is a blend of zinc oxide and a small amount of ferric oxide creating calamine powder. It is amorphous, impalpable, odorless pink powder. It is used primarily in skin care preparations like lotions and creams to soothe itchy skin. Made to USP Specification. Assay 99.1% Appearance - Fine pink powder. Solubility - Insoluble in water Particle Size - 140 sieve (a fine powder) Shelf Life - Up to 5 years. (this lot exp Sept 2027) BERAT NETTO (BERAT ISI): 50GR