As a natural functional whitening material, tetrahydrocurcumin has a strong activity of inhibiting tyrosinase. Its whitening effect is better than that of arbutin, which is known to us. It can effectively inhibit the generation of oxygen free radicals and can eliminate the free radicals that have been formed. It has obvious anti-oxidation, inhibition of melanin, repair and freckle removal, anti-inflammatory activity, and block the inflammatory process. In addition, the inhibition of free radicals, various inflammatory factors such as lipoxygenase, collagenase and hyaluronidase reflect the potential anti-aging effect of tetrahydrocurcumin.