Isn't sunscreen alone, enough?
No. Clothing is recommended because it can reduce exposure to a broad spectrum of UVA and UVB rays. While sunscreen remains an important part of a balanced sun protection plan, many organizations such as the American Cancer Society, the Skin Cancer Foundation and the American Academy of Dermatology recommend wearing tightly-woven protective clothes.
Sunscreen originally blocked only UVB rays, the ones that cause a tan or sunburn. UVA rays were thought to be safe, but a few years ago scientists learned that UVA rays are dangerous. Now most sunscreens block some UVA rays, but not all of them, and scientists still don't know whether the most dangerous UVA rays are being blocked.
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