How do I choose an SPF number?

Make sure your sunscreen has a sun protection factor (SPF) 30 or higher. The SPF number is the level of protection the sunscreen provides against UVB rays. Higher SPF numbers do mean more protection, but the higher you go, the smaller the difference becomes.

Do you get a tan with factor 50?

Because sunscreen doesn’t block all UV rays, this means you can still tan while using it, no matter what the SPF is – so you can still tan wearing SPF 50 sunscreen. The more protective alternative to sunscreen would be to wear sunblock, which is designed to block all UV rays.

What does SPF 20 PA ++ mean?

PA+ means your sunscreen or cosmetic provides some protection against UVA rays, PA++ provides moderate protection, and PA+++ offers the best protection of the three. Recent advancements have seen the introduction of PA++++ products in certain countries; this grade offers PPD protection of 16 or more.

What is the difference between factor 30 and factor 50?

What Does the SPF Number Mean? An SPF 30 allows about 3 percent of UVB rays to hit your skin. An SPF of 50 allows about 2 percent of those rays through. That may seem like a small difference until you realize that the SPF 30 is allowing 50 percent more UV radiation onto your skin.

What is sun protection factor (SPF)?

Sun Protection Factor (SPF) SPF is a measure of how much solar energy (UV radiation) is required to produce sunburn on protected skin (i.e., in the presence of sunscreen) relative to the amount of solar energy required to produce sunburn on unprotected skin. As the SPF value increases, sunburn protection increases.

How do I choose the right sunscreen for me?

Make sure your sunscreen has a sun protection factor (SPF) 30 or higher. The SPF number is the level of protection the sunscreen provides against UVB rays. Higher SPF numbers do mean more protection, but the higher you go, the smaller the difference becomes.

What is the difference between SPF 15 and SPF 30?

Higher SPF numbers do mean more protection, but the higher you go, the smaller the difference becomes. SPF 15 sunscreens filter out about 93\% of UVB rays, while SPF 30 sunscreens filter out about 97\%, SPF 50 sunscreens about 98\%, and SPF 100 about 99\%. No sunscreen protects you completely.

What does SPF stand for?

Sun Protection Factor (SPF) SPF is a measure of how much solar energy (UV radiation) is required to produce sunburn on protected skin (i.e., in the presence of sunscreen) relative to the amount of…