Does SPF 100 Provide More Protection Than SPF 50?
Explore how effective SPF 100 is versus SPF 50, and learn essential sunscreen application tips for optimal UV protection.
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SPF 100 does provide more protection compared to lower SPFs, but the difference is marginal. SPF 100 blocks about 99% of UVB rays, while SPF 50 blocks about 98%. The key is to apply sunscreen generously and reapply every two hours, especially after swimming or sweating. Regardless of SPF, no sunscreen offers complete protection, so combining it with other measures like wearing hats and seeking shade is essential.
FAQs & Answers
- Is SPF 100 worth it? While SPF 100 blocks about 99% of UVB rays, the extra protection over SPF 50 is marginal. Consistent application is key.
- How often should I reapply sunscreen? It's recommended to reapply sunscreen every two hours, especially after swimming or sweating, regardless of SPF.
- What does SPF actually measure? SPF measures the level of protection against UVB rays, which are the primary cause of sunburn and skin cancer.
- Can I rely solely on sunscreen for sun protection? No, sunscreen should be part of a comprehensive sun protection strategy that includes wearing protective clothing and seeking shade.