3-O-Ethyl Ascorbic Acid
3-O-Ethyl ascorbic acid is a stable ether derivative of vitamin C in which the 3-position hydroxyl group is replaced with an ethyl group. It is more stable than L-ascorbic acid, water and oil soluble, and converts to active ascorbic acid in the skin. It is effective for brightening, antioxidant protection, and collagen stimulation.
Benefits
How to Use
AM preferred. One of the most stable vitamin C derivatives — effective at 2–5%. Pairs well with ferulic acid. No strong adjustment period. Always wear SPF.
Works Well With
Skin Type Guide
Disclaimer: Ingredient information on Skinuity is for educational purposes only and does not constitute medical or dermatological advice. Always consult a qualified professional if you have skin concerns. Sources: EWG Skin Deep, EU CosIng, NIH PubChem, and published dermatological literature.