Rexsol Vitamin C20 Serum 30 ml is a potent antioxidant serum containing 20% pure vitamin C (ascorbic acid) to brighten skin, even out tone, and stimulate collagen production. Enhanced with hyaluronic acid and vitamin E, this formula deeply hydrates while protecting skin from environmental damage and free radicals. Regular use helps reduce fine lines, improve texture, and restore a youthful glow.