SPF 70 Sunscreen

SPF stands for sun protection factor. The higher the SPF number on your protector solar , the greater your level of protection. When you apply an SPF 70 sunscreen, your skin can handle 70 times more UVB exposure without burning. However, that high level of protection doesn't last as long as you might expect. Even SPF 70 sunscreens need to be reapplied frequently.

Sun exposure is the leading cause of skin cancer and premature skin aging. A single blistering sunburn can increase your risk of skin cancer by nearly 50%. That's why the Skin Cancer Foundation recommends using an SPF 15 sunscreen daily. The organization also suggests a protection level of SPF 30 or higher for all outdoor activities. Since SPF 70 sunscreens provide even more protection, they're a great option for anyone who spends a lot of time in the sun. In laboratory studies, products with high SPF values offer better protection against the harmful effects of the sun. However, it's important not to let the high sun protection factor give you a false sense of security. Sun protection values have little impact on how long any sunscreen protects your skin.

Sunscreens work by reflecting or absorbing the sun's UV rays. How long your protection lasts depends on several factors, including sunlight intensity. In direct sunlight, the sun's UV rays deplete the active ingredients in your sunscreen much faster. To get the most UV protection from SPF 70 sunscreen, be sure to apply your product 15-30 minutes before going outside. Then reapply every two hours or as directed on the label. Even sweat-proof and waterproof sunscreen need to be reapplied frequently.