We all know the importance of wearing sunscreen, that shouldn’t mean having to deal with a sunscreen that leaves an unsightly white cast on the skin. Most sunscreens out there leave behind a white residue, even some that claim not to. Thankfully there are some that actually won’t leave a white cast, are lightweight, moisturizing, and waterproof. What causes a white cast from sunscreen? There are two types of sunscreens: mineral and chemical. Chemical sunscreens absorb the UV rays, turning them to heat, and then releasing them. Mineral sunscreens sit on the surface of the skin acting as a physical barrier to reflect the sun. The ingredients are made of…