What SPF number is best for face?

30
Experts recommend using a sunscreen with an SPF of at least 30. Sunscreens with SPF s greater than 50 provide only a small increase in UV protection. High-number SPF s last the same amount of time as low-number SPF s.

Is higher or lower SPF better?

High-SPF products don’t give you a whole lot more protection. But the truth is that higher-SPF products are only marginally better at shielding you from UVB, according to both the EWG and the Skin Cancer Foundation. SPF 30 blocks nearly 97\% of UVB radiation, SPF 50 blocks about 98\%, and SPF 100 blocks about 99\%.

What does the 30 mean in SPF 30?

“Imagine that your skin normally begins to burn after 10 minutes in full sun without any protection. A 30 SPF sunscreen would provide 30 times the protection of no sunscreen.” That means 30 times longer before you start to burn, or in this case, 300 minutes.

What is the difference between UPF and SPF?

The Difference Between SPF and UPF. Both SPF and UPF involve ratings, but they measure two different things. In a nutshell, SPF measures how effective a sunscreen is at protecting your skin against burning from the sun’s rays. UPF, on the other hand, measures the amount of UVR (ultraviolet radiation) that a fabric blocks.

Which SPF sunscreen is best?

For best protection, experts recommend using a minimum SPF sunscreen of 15, applying the proper amount (2mg/cm2 of skin, or about one ounce for full body coverage), and reapplying every 2 hours. Most people under-apply sunscreens, using ¼ to ½ the amount required.

What does the SPF rating really mean?

SPF stands for sun protection factor. Simply put, an SPF rating tells you how long you can stay in the sun without getting burned while wearing that sunscreen, compared with how long you can stay in the sun before you burn without wearing that sunscreen 1 .

What is the highest SPF available?

The highest SPF rating commonly available in sunscreen is 110. However, experts weighing in at WebMD and The New York Times generally agree that products with SPF ratings above 30 offer only marginally superior benefits when it comes to sun protection.