spf 50 spf 30

The amount of UV rays filtered depends on the level of SPF you apply: SPF15 blocks 93% UVB rays. spf 50 30 SPF30 blocks 96. kemenkumham nomor 30 tahun 2018 7% UVB rays SPF50 blocks 98% UVB rays SPF100 blocks 99% UVB rays UVB rays can never be totally filtered, which is why it is important to reapply SPF protection at least every 2 hours