iS Clinical Youth Body SerumiS Clinical's Youth Body Serum is a refreshing lightweight serum mist that provides powerful hydration and antioxidant protection against environmental aggressors. Much more than a moisturizer, this body serum mist is formulated with the purest form of hyaluronic acid and blue micro algae extract combined with essential Vitamin B5, and extremozymes to nourish and leave the skin feeling fresh, soft, and more hydrated.