Vitamin C Ethyl Ether is a lipophilic, water-soluble vitamin C derivative, which not only makes it extremely convenient to use in formulas, but also easily penetrates the stratum corneum and enters the dermis. Once in the skin, it is easily decomposed by biological enzymes, exerting the effect of Ethyl Ascorbic Acid Ether, thereby improving its bioavailability. Ordinary vitamin C is difficult to be absorbed by the skin and has extremely low bioavailability. In addition, Ascorbic Acid Powder also shows extremely high stability compared to ordinary vitamin C.Product Efficacy: This product inhibits the activity of tyrosinase Cu2 and blocks the formation of melanin; prevents skin inflammation caused by sunlight; Ascorbic Acid improves skin color, promotes collagen production, and increases skin elasticity.