L-Ascorbic Acid Best Antioxidante Envejecimiento Manchas en la piel Tono desigual L-Ascorbic Acid at a glance Potent antioxidant and form of vitamin C Can improve the appearance of signs of aging Improves uneven tone AKA ascorbic acid L-Ascorbic Acid description Form of vitamin C that is a potent antioxidant and skin-soothing agent and can improve the appearance of signs of ageing and help brighten an uneven skin tone. L-ascorbic acid is often labelled as the INCI compliant “ascorbic acid” on ingredient lists, but there is no difference between the two—they refer to the same ingredient. Related ingredients: Ascorbic Acid Vitamin C