Zinc Oxide
		Zinc oxide is not the same kind of zinc you get from oysters, or other foods.  It is entirely inorganic, and has demonstrated mutagenic and teratrogenic effects in animal studies.  It is produced through vaporization of metallic zinc and oxidation of vapors with preheated air (French Process). (Merck Index, 1996, p. 1734). Its main uses are for pigments in paints, reflective agent in sunscreen, manufacture of glass, automobile tires, white glue, matches, porcelains, flame retardant,  plastics, rayon, lubricants, fabrics, etc.