Sunscreen active material

Many cosmetic formulations contain functional solids in finely divided form. Examples are sunscreening pigments (e.g., Ti02), biologically active materials (e.g., ZnPTO), thick-... 

GMPs have spread from being applicable strictly to drug dosage form manufacture, to a world where every dosage form or business sector involved with medicinals or their constituents has a detailed GMP code. These sectors include herbal medicines, active pharmaceutical excipients (inactives), clinical trial manufacture, biotechnology-sourced materials, sunscreen products, and so on. 

Atomic spectrometry has been used to determine metallic components in toothpaste, sunscreen, shampoos, cosmetic pigments, etc. Elements can be found in cosmetics and toiletries as active ingredients (e.g., Se in shampoos) or as impurities from the raw materials. The elements most frequently determined are Pb, Hg, and As but Se, Cd, Zn, Ti, Fe, Cr, Si Bi, Ba,... 

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