3-O-Ethyl ascorbic acid ek stable form hai vitamin C ka jo ether-derived hota hai. Ye skin mein convert ho jaata hai ascorbic acid mein aur antioxidant protection deta hai. Collagen synthesis ko support karta hai aur hyperpigmentation ko reduce karne mein madad karta hai. Alkyl substitution ki wajah se ye bahut stable rehta hai aur easily absorb ho jaata hai skin mein.