Ethyl Ascorbic Acid (EAA)

Ethyl Ascorbic Acid (EAA) is a antioxidant used in K-beauty for Brightens, Antioxidant, Converts to ascorbic acid in skin. The trendy newcomer in the vitamin C family — more stable than L-AA, faster converting than MAP.

There is limited safety data on Ethyl Ascorbic Acid (EAA) during pregnancy. Exercise caution and consult your healthcare provider before use.

Ethyl Ascorbic Acid (EAA) is particularly well-suited to normal, combination, dullness skin.

Ethyl Ascorbic Acid (EAA) layers well with niacinamide, vitamin e. These combinations are common in K-beauty routines and have no known negative interactions.

We rate the clinical evidence for Ethyl Ascorbic Acid (EAA) at 3/5 — moderate. 1–5% typical. Stable, moderately penetrating.