L-Ascorbic Acid (Vitamin C) Known as the most efficacious or the best form of Vitamin C, L-Ascorbic acid helps neutralize free radicals, minimize the look of fine lines and wrinkles, and brighten skin tone. Daily Use of Vitamin C Proactively fortifies the skin defenses against environmental assaults. Encourages skin to rebound from previous, visible damage for an improved appearance of fine lines, wrinkles and uneven skin tone. Aids in restoring skin's antioxidant strength to help skin appear younger for longer.