A chemical sunscreen contains chemical compounds that absorb the sun’s UVA and UVB rays like a sponge, converting them into heat before they hit the skin’s dermis layer, therefore preventing UV rays from damaging the skin. They usually feature a thin, easily absorbed texture that layers beautifully with other skincare products and under makeup. Our Invisible Facial Sunscreen SF50+ is a chemical sunscreen. A physical sunscreen contains physical/mineral sun blockers, like zinc, that creates a physical barrier between your skin and the sun. Physical sunscreens reflect some UVA and UVB rays off the skin, while absorbing others, just like a chemical sunscreen. Sensitive skin types often prefer physical sunscreens, especially if they are prone to irritation. The inclusion of zinc often creates a thicker formula with a more mattifying finish. Our Mineral Mattifying Sunscreen SPF50+ is a physical sunscreen.