Renew skin's luminous glow with The Ordinary's 15% Ascorbic Acid Solution; An exceptionally stable, direct form of Vitamin C that visibly brightens skin while protecting it from harmful environmental damage. Unlike other derivatives of Vitamin C, the ethyl form is closer in molecular weight to the purer form of L-Ascorbic Acid, making it faster and more effective in penetrating the layers of the skin on a deeper level. Visibly boosting skin's radiance while evening out skin tone and reducing the appearance of dark spots, the solution leaves skin glowing from within.