Stability issues with L-ascorbic acid have given rise to the synthesis of various vitamin C derivatives with comparable effects. | Cosmetics & Toiletries
Amazon.com: Talsen Chemicals Ethyl Ascorbic Acid Powder Stable Vitamin C Derivative Help to Absorb Vitamin C to Skin Improve Skin Gloss, Skin Elasticity, Anti-Oxidation, and Other Functions (1 Ounce / 28 Gram) :