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SPF, or Sun Protection Factor, measures how well a sunscreen protects the skin from UVB rays, which can cause sunburn. An SPF of 15 blocks about 93% of UVB rays. This means that if you would normally burn after 10 minutes in the sun, using SPF 15 could allow you to stay in the sun for approximately 150 minutes without burning, although reapplication is crucial for continued protection.
What else can I help you with?
How much SPF is in Neutrogena Lip Moisturizer?
It has an SPF of 15 (I know because I have it)
You have only SPF 15 at home could you just apply it three times so that it is equal to SPF 45?
No it doesn't add up. It is still 15 no matter how much you apply it.
Is SPF 30 suits oily skin?
i think no...because...upto 15 spf...those included moisturizer...nd oily skin have so much in winters specially...
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 rays does SPF block?
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.
Will you get a good tan if you use spf 45 for 2 days and spf 30 for 2 days and spf 15 for the remainder while on Caribbean vacation and you have fair skin?
How long is the vacation? You are still apt to burn with fair skin if you are using SPF 15 for 7-10 days longer.
All varieties except original jar and tube Carmex have SPF 15?
Yes, that is correct. Only the original jar and tube Carmex products do not contain SPF 15. Other varieties of Carmex, such as flavored or tinted lip balms, do contain SPF 15 for added sun protection.
How long can you stay in the sun with SPF 15?
150 minutes
What spf sunscreen is best to uses to exercise outside?
15 and up
I need a moisturizer that has an SPF of at least 15 that won't have a lot of perfumes that attract bugs What can I get?
Try Aveeno. All of their mosturizers are fragrence free and have SPF in them.
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.
What SPF sunscreen you should use to exercise outside?
If you are exercising, it would be best to use a sunscreen with an SPF of at least 30 and reapply at least every two hours or after sweating.
