Powder, patented product. Its chemical name is 4-hydroxy-3-methoxycinnamic acid, which is one of the derivatives of cinnamic acid (also known as cinnamic acid 3-phenyl-2-acrylate, molecular structure). It can eliminate free radicals, promote the production of enzymes that eliminate free radicals, increase the activity of glutathione transsulfurase and quinone reductase, and inhibit the activity of tyrosinase to regulate human physiological functions;
