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3-O-Ethyl Ascorbic Acid: K-beauty ingredient guide 에칠아스코빌에텔

⏱ 1 min read
Quick answer: The vitamin C derivative Korean brands use when they want a serum that does not turn orange by March. Korea's MFDS lists it among the notified 미백 (mibaek, brightening) functional actives, which means a product carrying that mark on its strength contains a regulated amount. Gentler than L-ascorbic acid, and slower.

The vitamin C derivative Korean brands use when they want a serum that does not turn orange by March. Korea's MFDS lists it among the notified 미백 (mibaek, brightening) functional actives, which means a product carrying that mark on its strength contains a regulated amount. Gentler than L-ascorbic acid, and slower.

What 3-O-Ethyl Ascorbic Acid does for your skin

Best for

🟤 Dark spots & tone🌟 Dullness & glow☀️ Sun damage & photoageing

🌌 3-O-Ethyl Ascorbic Acid compatibility map

Tap any ingredient to open its guide. ━ pairs well · ┈ use with care.

🧫Niacinamide …🫐Alpha-ArbutinTranexamic A…🌻Vitamin E (T…🍋3-O-Ethyl As…
🤰 Pregnancy: Generally considered fine — confirm with your doctor. · ⏰ Use: AM

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✍️ Written & reviewed by the KoreaPlus Editorial team — dermatologist-informed, cosmetic-science researched & source-cited. Last reviewed: 2026-08-23.

General educational information using cosmetic structure-function wording — not medical advice. Always patch-test new actives. © KoreaPlus.