VC ethyl ether penetrates the stratum corneum directly to the melanocytes of the basal layer, inhibits tyrosinase activity, inhibits the formation of melanin, and reduces melanin to colorless, thereby effectively whitening the skin. Moreover, VC ethyl ether can enter the dermis and directly participate in the synthesis of collagen to repair skin cell activity and increase collagen, thereby making the skin plump and elastic, making the skin delicate and smooth.