difference between spf 30 and 50

For example, an SPF 15 sunscreen blocks 93% of UVB rays, an SPF 30 sunscreen blocks 96. orthopedics and sports medicine 7 percent of UVB rays and SPF 50 sunscreen blocks 98% of UVB rays. lenovo g50 30 This means there's a bigger difference in sun protection between SPF 15 and SPF 30 sunscreens, but less of a difference when you compare SPF 30 vs SPF 50 sunscreen