2-O-ETHYL ASCORBIC ACID is graded A (Safe) by Expert·ING, based on COSING regulatory data.

2-O-ETHYL ASCORBIC ACID

Ethyl Ascorbic Acid

Safety grade: A

A stable form of Vitamin C that has been slightly modified in a lab to make it last longer and work more effectively in skincare products. It delivers the brightening and antioxidant benefits of Vitamin C without breaking down as quickly as regular Vitamin C.

This ingredient is used in cosmetic products to brighten skin tone, reduce the appearance of dark spots, and protect skin from environmental damage caused by free radicals.

Graded using: COSING.

Last verified: May 26, 2026