50% OFF!Zinc Oxide USP (United States Pharmacopeia) is a white powdery mineral that is frequently found in cosmetics and other personal care products as a bulking agent and colourant. It is also used as a skin protectant in sunscreen and diaper rash products. It is not soluble in water and therefore requires an oil or other such carrier agent to function effectively. Available in 170 g net size (approx 6 oz).