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1731
June 23, 2025

Excessive exposure to ultraviolet (UV) radiation can cause erythema, photoaging, and skin cancer.1,2 Sunscreens are widely used to reduce these risks, but questions remain about their effectiveness and safety. In 2021, the FDA proposed a rule that would require additional safety studies for some sunscreen active ingredients and mandate better UVA protection in sunscreen products.3

UVA and UVB — UV radiation is classified based on wavelength as UVB (290-320 nm), UVA2 (320-340 nm), and UVA1 (340-400 nm). UVA, which makes up 95% of...  Continue reading

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