Cetaphil Deep hydration 48 hour activation serum instantly absorbs to deeply replenish skin's hydration for 48 hours and improve the overall quality of sensitive skin. Features hydrosensitiv complex which deepens dynamic hydration and soothes skin sensitivity. This lightweight serum also includes hyaluronic acid, sunflower seed oil, Vitamin B5 and antioxidant rich Vitamin E to rehydrate and restore skin's appearance while soothing dry skin and dehydrated skin. Can be used alone or layered under face lotion or cream to provide a deep boost to skin's hydration. Designed for sensitive skin, Effective yet gentle skin care that won't clog pores or irritate skin; Features a gentle scent & Clinically Tested on sensitive skin. From the #1 Dermatologist recommended facial skincare brand.