Does it matter if you use SPF 30 or 50?
Does it matter if you use SPF 30 or 50? SPF 30 blocks about 97% of UVB rays, while SPF 50 blocks about 98% of UVB rays. This means that SPF 50 provides slightly higher protection against UVB radiation compared to SPF 30. However, it's important to note that the difference in protection between SPF 30 and SPF 50 is minimal.
Why not always use SPF 50?
Higher SPF sunscreens contains higher concentrations of chemical sunscreen ingredients. It is scientifically shown that chemical (organic) sunscreen ingredients can be absorbed into the skin, and when struck by UV radiation, these can become quite aggressive free radicals, increasing the risk of damage.