iS Clinical Poly-Vitamin Serum - 0.5 oz is an intensive reparative serum that hydrates, regenerates and repairs the skin. It contains a powerful blend of essential vitamins, bio-nutrients and antioxidants that are delivered directly to the cells. This serum helps nourish and regenerate skin while fighting age and disease-causing free-radical damage. It also encourages enzyme formation as it accelerates exfoliation and improves skin texture and tone. This product is ideal for all skin types.