How do sunscreen work?
The SPF provides an indication as to the amount of time that a user may remain in the sun. The number following the SPF is the multiple of the time that it takes for the average skin to burn. Everybody’s skin is different and burns at different times. For example, if it takes you 10 minutes for the skin to burn, and you use an SPF 15, you should not burn for 150 minutes. Additionally, all sunscreens work differently so it is good to have a combination of sunscreens. Up to SPF 30 is sufficient for day to day use. Any SPF higher than 30 will only give an approximately 2-4% more protection while increasing the amount of potentially irritating chemical ingredients by 50 percent. 15 minutes a day of sun exposure throughout your body is enough to produce necessary Vitamin D. Sunscreen Rules 1. Apply sunscreen at least ¹-inch into the hairline, and remember the ears 2. After application, allow 15-30 minutes before exposing the skin to the sun. It takes about that time for the sunscreen to abs
