Wearing sunscreen helps prevent sunburns, protects against skin cancer, and helps prevent skin aging. Experts recommend using a broad-spectrum, water-resistant option with a sun protection factor (SPF) of 30 or above daily, regardless of the weather.
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How Sunscreen Works
Sunscreen can be physical (mineral) or chemical , both of which effectively protect the skin from the sun's harmful rays:
Physical sunscreen uses ingredients like zinc oxide or titanium dioxide, and both absorb and reflect the sun's rays from your skin.
Chemical sunscreen works by absorbing the sun's rays.
Sunscreen works by blocking two types of harmful ultraviolet (UV) rays that can damage your skin and lead to skin cancer:
UVA rays cause skin aging and can pass through glass.
UVB