Tetrahydrocurcumin, a natural functional whitening material, from curcumin (curcumin) isolated from the rhizome of ginger plant turmeric (curcuma longa). Because of its potent activity to inhibit tyrosinase, the whitening effect of this product is better
Nervonic Acid It exists as an elongation product of oleic acid (18:1,9), and its direct precursor is erucic acid. Nervonic acids are particularly abundant in animal white matter and brain. In recent years, data have shown that the intermediate product of