spf 50 vs spf 30

And the math. (1/30) x 100% = 3.33% which means 3.33% of UVB rays are allowed through a full (more about this soon) application of SPF 30 sunscreen. This also means SPF 30 gives your skin a protection percentage of 96.67, or rounded up 97%. So my friend, you now have the SPF 30 vs 50 answers. It’s a no to an extra 40% sun protection and a yes ... chelsea vs brentford