Physical blockers work by either reflecting or absorbing harmful radiation. Sunscreens containing minerals like zinc oxide or titanium dioxide create a physical barrier on the skin's surface, reflecting UV rays away from the body. Protective clothing, including wide-brimmed hats and long-sleeve shirts, can shield the skin from direct sunlight, thereby reducing the risk of skin cancer. UV-blocking eyewear protects the eyes from UV radiation, which can lead to ocular malignancies.
