Beauty Encyclopedia›Ethyl Ascorbic Acid
💄 Scan LabelAlso known as: 3-O-Ethyl Ascorbic Acid, EA
A highly stable Vitamin C derivative favoured in Korean beauty formulations.
Ethyl Ascorbic Acid has an ethyl group attached to the 3-position of ascorbic acid, greatly improving stability and penetration. It converts to ascorbic acid in the skin and functions as both a tyrosinase inhibitor and antioxidant. It is water and oil soluble, making it versatile in formulations. Minimal irritation at effective concentrations.
Concentration note
Typically 2–3% in formulas.
No known safety concerns. One of the most stable and tolerable Vitamin C derivatives.
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💄 Scan a Beauty Label →For informational purposes only. Not medical advice. Consult a dermatologist for personalised guidance.