Brand new in box! Enlighten-C 20% Advanced Brighten THD Ascorbate (Vitamin C) 20%, the most potent and stable form of Vitamin C in water free formula yo deliver high efficacy. Well tolerated for all skin types. Brightens away hyperpigmentation and dark spots. Provides maximum protection against UV damage. Stimulates the growth of collagen and elastin fibers to help reduce wrinkles and fine lines. Directions: Apply 3 to 5 drops into palm of hand and apply evenly onto clean face, neck and chest in the morning. Avoid eye area. Follow with sunscreen, SPF 30 or higher. Can also be used at night to achieve enhanced brightening benefit.