Let the C-Shine In! With DeVita-C 17% topical Vitamin C serum! Each day you are exposed to air pollution, sunlight, smoke and more, all of which can create free radicals which can cause chemical reactions, leaving your skin looking aged. These free radicals can attack your skin's collagen layer, creating the appearance of fine lines and wrinkles. DeVita-C 17% Serum can help the appearance of skin's tone and elasticity in addition to virtually softening the look of fine lines and wrinkles. Your skin can appear revitalized and have a visibly enhanced look in just a few short days.