For best results, apply our HOPMATE serum before you moisturize. Let the serum dry for one minute before applying a moisturizer with SPF. Wear our serum in the daytime as a protective layer from free radicals and UV rays, and at night to undo oxidative damage. At HOPEMATE, we dedicate to creating gentle, potent, and cruelty-free skincare products. This serum has not been tested on animals at any stage of production. Here are more reasons to love our Vitamin C serum: 💧 It keeps skin firm, healthy and plump 💧 It keeps skin flexible, preventing stretch marks caused by weight loss or gain 💧 It protects skin from UV damage caused by prolonged exposure to the sun 💧 It helps fade brown spots