I've been on the hunt for a good physical sunscreen for my fair, sensitive, combination skin type. I' not sure if the sunscreen is waterproof but it's advertised to hold up against sweating and sports. I wanted something for the really hot days I know I'm going to sweat. It might leave a white cast on medium to dark skin but doesn't leave one for me and it blends well considering it's a physical sunscreen. Glad I took a chance and purchased this.