Hydra-Cool Serum is formulated to rejuvenate, hydrate, and visibly soothe the skin. This refreshing, powerful serum combines superior antioxidants with essential botanicals and bionutrients. Hydra-Cool Serum is designed for all skin types and for all ages, and is gentle enough for even the most sensitive skin. Apply a small amount to the palm of hand. Using fingertips, dab and smooth evenly over face and neck. Serum may be used by itself or layered with other iS Clinical products.