The Science of Shielding: Evaluating Sunscreen Safety and Efficacy

Health experts recommend using sunscreen to reduce skin damage from UV rays. While SPF measures protection against UVB rays, it doesn’t fully assess protection against UVA rays. There’s no agreed method to test UVA protection, though consumers want sunscreens that protect against both UVB and UVA. Most sunscreen ingredients are safe based on studies, and sunscreens effectively prevent UV damage. Using broad-spectrum sunscreen regularly can help improve public health by reducing UV exposure.