What Does SPF Mean? Sunscreen Explained
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☀️ You see "SPF" on your sunscreen bottle, but what is SPF (spoiler: sun protection factor) and is higher really better? In the latest video from our #MSKExplains series, MSK dermatologist Dr. Erica Lee breaks down what SPF actually means, how it protects your skin, and why applying (and reapplying) sunscreen matters more than chasing the highest number. Watch to learn more and share to help protect others this summer. | Memorial Sloan Kettering Cancer Center
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☀️ You see "SPF" on your sunscreen bottle, but what is SPF (spoiler: sun protection factor) and is higher really better? In the latest video from our #MSKExplains series, MSK dermatologist Dr. Erica Lee breaks down what SPF actually means, how it protects your skin, and why applying (and reapplying) sunscreen matters more than chasing the highest number. Watch to learn more and share to help protect others this summer. | Memorial Sloan Kettering Cancer Center
1.5K views9 months ago
FacebookMemorial Sloan Kettering Cancer Center
Here’s what the SPF number on your sunscreen actually means — and why it might be fooling you. Most people think SPF 30 means full protection from the sun. But that’s not how it works. SPF 30 means you can stay in the sun 30 times longer without burning. If it usually takes you 20 minutes to burn, SPF 30 gives you about 600 minutes — that’s 10 hours. But here’s what no one tells you… SPF only blocks UVB rays — the ones that cause sunburn. It does not block UVA rays. And UVA is the real danger. I
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Here’s what the SPF number on your sunscreen actually means — and why it might be fooling you. Most people think SPF 30 means full protection from the sun. But that’s not how it works. SPF 30 means you can stay in the sun 30 times longer without burning. If it usually takes you 20 minutes to burn, SPF 30 gives you about 600 minutes — that’s 10 hours. But here’s what no one tells you… SPF only blocks UVB rays — the ones that cause sunburn. It does not block UVA rays. And UVA is the real danger. I
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🌞☀️Ever wondered what SPF actually means and how it is determined? Let's break it down!🔍✨ SPF stands for Sun Protection Factor, and it’s your skin’s best friend against harmful UV rays. The number indicates how long you can stay in the sun without getting burned. For instance, SPF 30 means you can stay out 30 times longer than without protection! 🌿🕶️ Protect your skin, stay sun-smart, and enjoy the summer safely! 😎🌸 Follow for more tips on staying sun-safe and skincare secrets! 💛✨ # Skinc
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SPF, or Sun Protection Factor, is a numerical rating system used to measure the effectiveness of a sunscreen in protecting the skin from harmful ultraviolet (UV) radiation. Specifically, SPF indicates the level of protection a sunscreen provides against UVB rays, which are primarily responsible for causing sunburn and increasing the risk of skin cancer. #sunscreen #spf #beautytip #sunscreenviral
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