Nutrition Facts with Dr. Greger How Effective Is Sunscreen?
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Sep 19, 2024 Discover the surprising truth about how effective sunscreen really is in preventing skin aging and skin cancer. Dive into the latest research, including randomized controlled trials, and learn why it's essential not to rely solely on sunscreen. Uncover the limitations of current studies and the FDA's evaluations of sunscreen ingredients. The discussion emphasizes the importance of proper application and consistent usage, revealing disparities in practices among different demographics.
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Daily Sun Protection Matters
- Protect your skin daily with sunscreen and other measures like hats to slow aging.
- Sun exposure causes up to 90% of facial aging in lighter skin tones.
Broad Spectrum Sunscreens Work
- Broad-spectrum sunscreen protects against UVA aging and UVB burning rays.
- Even SPF 15 helps prevent skin aging, with SPF 30+ recommended to prevent cancer.
Sunscreen Slows Skin Aging
- Daily sunscreen use can prevent visible skin aging and UV-related skin damage.
- In a 4.5-year study, daily users had no detectable increase in skin aging.