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BHT = butylated hydroxy-toluene is commonly used in cosmetic formulations as an antioxidant. It acts as an antioxidant by preventing or slowing the deterioration of cosmetics and personal care products caused by chemical reactions with oxygen. Melting point 70°C (158°F). Purity 99%. Off white to yellowish crystals, characteristic odor. Neutralizes free oxygen radicals and acts as potent antioxidant. Extends shelf-life & stabilizes colorants of cosmetics.