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When it comes to sun protection, you’ve probably heard of SPF, but UPF might be new to you. Both are essential for keeping your skin safe, but they refer to different types of protection. Understanding how they work can help you make smarter choices when it comes to preventing sun damage and skin cancer. What Is SPF? SPF stands for Sun Protection Factor, and it applies to sunscreens. SPF measures how well a sunscreen protects your skin from UVB rays, which are the rays that cause sunburn and contribute to skin cancer. For example, if you normally burn after 10 …
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