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2-O-Ethyl Ascorbic Acid

What 2-O-Ethyl Ascorbic Acid is & what it does

2-O-Ethyl Ascorbic Acid is a stabilized derivative of vitamin C (ascorbic acid) with an ethyl group attached at the 2 position. In skincare it is used as an antioxidant and brightening ingredient, and it is more stable in water and against oxidation than pure ascorbic acid. This stability makes it a popular choice for serums and other vitamin C formulas.

What does 2-O-Ethyl Ascorbic Acid do in skincare?

2-O-Ethyl Ascorbic Acid is a stable vitamin C derivative used as an antioxidant and brightening ingredient. It helps formulas resist oxidation better than pure vitamin C, so it stays effective longer. It is popular in serums and other vitamin C products.

Is 2-O-Ethyl Ascorbic Acid safe?

2-O-Ethyl Ascorbic Acid is a widely used vitamin C derivative considered generally well tolerated in skincare, and it is often chosen for being less irritating than high-strength pure ascorbic acid. Sensitive skin may still prefer to introduce it gradually and patch test. For specific concerns, consult a professional.

Is 2-O-Ethyl Ascorbic Acid natural or synthetic?

2-O-Ethyl Ascorbic Acid is a synthetic derivative of ascorbic acid (vitamin C), made by adding an ethyl group to the vitamin C molecule for stability. It is not found in this form in nature. The modification is what makes it more shelf-stable than plain vitamin C.

Sunscreens with 2-O-Ethyl Ascorbic Acid

We rate 13 sunscreens that contain it, showing the top 10 by overall score:

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