What sunscreen really looks like under UV light Through a UV camera, sunscreen shows up as a dark or black layer on your skin. Why? Because it absorbs ultraviolet light, blocking it from penetrating and damaging your skin. Why this matters: * It shows exactly where you applied (or missed!) sunscreen. * Missed spots = unprotected skin → higher risk of sunburn, premature aging, and skin cancer. * The darker the layer under UV, the more protection that area has. Sunscreen isn’t just invisible lotio