Active ingredient
2-O-Ethyl Ascorbic Acid
INCI: 3-O-ETHYL ASCORBIC ACID
An ether derivative of L-ascorbic acid in which the 3-OH position is protected by an ethyl group, making it stable in water-based formulas. Converts to Vitamin C inside skin cells. Used widely in Japanese brightening products (Shiseido, Elixir) as a quasi-drug-adjacent brightening active.
Also known as: ethyl ascorbic acid, 2-O-ethylascorbic acid, 3-O-ethyl ascorbic acid, ethylated vitamin C
antioxidantskin-brighteningcollagen-synthesis
Benefits
- ✓Stable Vitamin C derivative that brightens skin and evens tone
- ✓Promotes collagen synthesis
- ✓Less irritating than L-ascorbic acid at equivalent concentration
Watch for
- ⚠May cause mild tingling on sensitive skin at high concentrations
Compatibility
✓ Works well with
+ Niacinamide+ Tocopherol+ Tranexamic Acid
