Vivier Advanced Skin Lightening Serum is a potent, multi-purpose serum designed to correct moderate to severe hyperpigmentation while addressing signs of aging. It combines 2% Hydroquinone USP to fade dark spots and 10% L-Ascorbic Acid USP (Vitamin C) to brighten, reduce fine lines, and stimulate collagen production. The lightweight formula uses Vivier's proprietary IntraDermal System to enhance ingredient delivery for brighter, more even-toned, and youthful-looking skin.