What exactly is Ethylated Ascorbic Acid? This stable form of Vitamin C, unlike other Vitamin C derivatives, requires no conversion into L-Ascorbic Acid, and therefore is directly usable by the skin. This makes The Ordinary’s Ethylated Ascorbic Acid 15% Solution a great choice for the newer Vitamin C user looking for a direct approach to radiant, more healthier looking skin. This straightforward formula targets uneven tone, signs of aging and boosts antioxidant support. Now available at theordinary.com - with a 23% saving until June 23. Available only at DECIEM.com, NIOD.com and TheOrdinary.com and DECIEM/The Ordinary retail stores. Offer not available in Australia. Offer expires on June 23, 2022 at 12:00AM EST. No rainchecks and not applicable to purchases outside the offer period. Not valid with other offers, non-transferable and no cash value. DECIEM reserves the right to amend or cancel this offer at any time in its discretion.