When it comes to sunscreens do you really know what the difference between SPF 15 and an SPF 30 rating is?
SPF stands for sun protection factor and the numbers that accompany it are part of the equation that lets you know how long you can safely stay in the sun. For example, if you typically sunburn after 10 minutes a sunscreen with an SPF 15 rating will allow you to stay out for about 150 minutes before burning.
It’s also important to remember that SPF measures only the amount of UVB that is blocked, it doesn’t account for UVA protection. Look for sunscreens that are labeled broad spectrum protection, which protect against both types of rays.