What is the UV index and how does it affect sunscreen use?
The UV index measures the strength of ultraviolet radiation from the sun. A higher index means a greater risk of harm to skin, making sunscreen more important.
What UV index level requires sunscreen?
It's recommended to use sunscreen when the UV index is 3 or higher. At this level, unprotected skin can be damaged in about 30 minutes.
What SPF should I use based on the UV index?
For a UV index of 3-5, use at least SPF 30. For 6-7, SPF 50 is better, and for 8 or higher, consider SPF 50+.
How often should I reapply sunscreen?
Reapply sunscreen every two hours, or more often if you're swimming or sweating.
Are there any other ways to protect myself from UV rays?
Yes, wearing protective clothing, seeking shade, and using sunglasses can also help protect against UV rays.
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