When choosing sunscreen, take into consideration: Broad spectrum (protects against UVA and UVB rays), waterproof, longlasting and Sun Protection Factor (SPF – the higher the number, the greater the protection).
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- Sun safety Q&A @ NHS Choices
Excerpt: What is broad spectrum and the star-rating? Broad-spectrum products provide protection against the sun’s UVB and UVA rays. The sun protection factor, or SPF, is a measurement of the amount of UVB protection. The higher the number, the greater the protection. In the UK, UVA protection is measured with a star rating. Sunscreens has from 0 to 5 stars. The higher the number of stars, the greater the protection.
- Sunscreens @ American Academy of Dermatology
Excerpt: Generously apply a broad-spectrum, water-resistant sunscreen with a Sun Protection Factor (SPF) of at least 30 to all exposed skin. “Broad-spectrum” provides protection from both ultraviolet A (UVA) and ultraviolet B (UVB) rays. Re-apply approximately every two hours, even on cloudy days, and after swimming or sweating.
image: maialen protection search - CC by-sa - Mario Antonio Pena Zapatería
