It has an SPF of 15 (I know because I have it)
No it doesn't add up. It is still 15 no matter how much you apply it.
i think no...because...upto 15 spf...those included moisturizer...nd oily skin have so much in winters specially...
"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
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.
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.
150 minutes
15 and up
Try Aveeno. All of their mosturizers are fragrence free and have SPF in them.
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.
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.
Probably 5, 10, 15, 20, 25, 30, 35, 40, 25, and 50. Why do they would make lotion like SPF 5 and 10 while they already have SPF 50?