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Should be UVA and UVB. Read the labels, and use at least SPF 15 up to SPF 30 if you are very fair or freckle easily.
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∙ 13y ago
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Which sunblock best helps to prevent a sunburn?
The best sun block I not going out in the sun at all. But if you have to, use baby sun block. It's stupid, yes, but it has a higher SPF which means it blocks out more of the suns rays.
Does Beach Bum Tanning lotions have any SPF in them?
Currently Beach Bum Tanning Lotions do not contain SPF's. SPF's protect you skin from harmful rays.
Does the SPF count?
"The Sun Protection Factor (SPF) displayed on the sunscreen label ranges from 2 to as high as 50 and refers to the product's ability to screen or block out the sun's harmful rays. For example, if you use a sunscreen with an SPF 15, you can be in the sun 15 times longer that you can without sunscreen before burning. Consumers need to be aware that SPF protection does not increase proportionally with an increased SPF number. While an SPF of 2 will absorb 50% of ultraviolet radiation, an SPF of 15 absorbs 93% and an SPF of 34 absorbs 97%." from http://www.melanomafoundation.org/prevention/facts.htm
What is a good spf sunscreen for kids?
4, 15, and 30 are good Sun Protection Factors for kids as they contain no "Bad Ingredients". SPF 50+ should not be used on young children. SPF 100+ can not be used on children under 13.
Does clothing have spf?
I guess it would protect you from some UV rays. There are also special swim shirts that have built in SPF.
What is the minimum SPF for UV rays?
i would say that the least sppf you should use is an SPF of 5. it protects you skin, but not for a long amount of time.
What sun block has the highest SPF?
Spawellness sell 100spf sunlotion.
What does the number mean in front of spf on sunblock?
it means the amount of protection you get from the suns rays
What percent of the suns ultra violet rays are blocked with spf 25 sunscreen?
50%
Is SPF 50 better then SPF 30?
From the Journal of The National Cancer Institute: According to Weinstock, the cap on SPF labeling is not a major issue for the public as a whole. "I think that if the general public uses SPF 30 or greater, that's sufficient." As Weinstock explained, SPF is a reciprocal function: SPF 15 lets in 1/15 of the burning rays; SPF 30 lets in 1/30; and SPF 50 lets in 1/50. Therefore, the difference between SPF 30 and SPF 50 is only a difference of 97% effectiveness versus 98% effectiveness. "That little bit may be important to some people who have particular sensitivity," said Weinstock. "But, to the general public, it really is not that critical." Remember that SPF30+ sun cream will block out 97% of the sun's rays. SPF50+ will block out 98%. There is NO bearing on the DURATION you can put the sun screen on and expect protection. The issue is that people generally don't put on enough, so they're only getting around 50% protection because of their own vanity. The more you put on, the closer you get to the full coverage offered by the cream. If you use an SPF30+ cream you'll only get a little less protection than the 50, but you need to use enough. The SPF isn't the issue, it's the usage.
Would adding spf 30 sunscreen to spf 50 sunscreen make it spf 80 sunscreen?
No. SPF 30 lets in 1/30 of burning UV rays, while SPF 50 lets in 1/50. Adding the two together is pointless and would not result in high levels of skin protection.
What is the highest SPF facial sunblock can be purchased in?
It was probably SPF 30 because that blocks 96.7% of UVB rays. SPF 50 blocks 98% so you aren't really getting that much more protection than the SPF 30. Neutrogena has a SPF 100 but it really isn't necessary because as I said, SPF 30 is already blocking a significant amount, and SPF 50 doesn't even make that much more of a difference. Just for your information, SPF 100 blocks 99% of UVB rays so it REALLY doesn't do much more than SPF 50.
