Gamma Oryzanol is an oil-soluble, easily absorbed antioxidant that stimulates blood circulation under the skin. It is recognized as an effective ingredient for skin products, whitening formulations, and sunscreens. Gamma Oryzanol (Gama Orizanol, Gamma-Oryzanol, Gamma-OZ, Oryzanol) is derived from rice bran oil as a white or slightly yellow crystalline powder.