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.
It’s 15
45
at least 15
15
O
15 and up
It is proven that people with light skins, are best protected when using a SPF 50 sunscreen and upwards. Sunscreen has SPF ranging from 8, all the way up to 70. Depending on your skin tone, it is better to be too careful by protecting with a high number SPF.
15;90
15;90
Assuming the question is asking about sunscreen SPF, it stands for sun protection factor. This is put on sunscreen bottles to show the consumer how strong the sunscreen is.
500
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.
A million SPF
The SPF in the sunscreen plays no role in how many hours you can go without reapplication. If you need to quickly reapply your sunscreen after any water or exercise activities I highly recommend looking for a different brand. The Coppertone brand that I use, needs to be reapplied once every 8 hours even after sweating or water play activities.
It does. The higher the SPF, the higher UV protection it contains. Let's say you have a sunscreen with a 30 SPF and one with 60, the one with 60 offers more protection.
To prevent sunburn, everyone over the age of six months should use a water-resistant sunscreen with a sun protective factor (SPF) of at least 15. Apply at least an ounce of sunscreen 15-30 minutes before going outside.
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.