NIA 24 Damage Repair nourishes the over-exposed decolletage and hands with a patented micronutrient delivery system that penetrates the epidermis to repair and reverse sun damage. NIA 24 inside-out topical, Niacin-powered barrier builder fortifies the thin skin of the decolletage and hands. Ideal for those with a history of sun exposure, NIA 24's continuous release technology works around the clock to repair sun damage.