Sun Protection Factors (SPFs) is a metric that determines how well sunscreen protects your skin.
SPFs: Although you may come across references to the sun protection index,’ most product labels now use SPF. SPFs are industry standards, which means that every sunscreen company uses the same index. The amount of protection against UVA and UVB radiation is indicated by numbers such as 15, 30, and 50. In theory, a sunscreen must offer UVA protection equal to at least 1/3 of the specified number. So an SPF 30 must, for example, provide UVA protection of at least a ten.
But let’s be clear: an SPF 50 doesn’t prevent us from tanning! An SPF 50 is required if you have ashen skin or find it difficult to tan. After a week, you can reduce to an SPF 30. The best method to tan is to do it gradually. Start with an SPF 30 if you’ve already got a light tan, but have an SPF 50 on hand just in case.
If your skin starts to cook, it’s better to be safe than sorry. Whatever your situation, an SPF 30 is the bare minimum for protecting your skin and preventing it from premature aging. This is accurate for people with both knowledge and dark complexion tints.
No! Although an SPF of 50 protects us from UV radiation, it is not sunscreen! Even with such a high SPF, dermatologists believe that we should reapply sunscreen every couple of hours and soon after swimming. Some research indicates that it’s okay to reduce your SPF after four days.
In 2006, the United Kingdom banned the use of sunblock. It’s a European Union regulation. What if a sunscreen advertises itself as a sunblock? Don’t trust what you’re hearing! The latest codes have banned any sunscreen that has an SPF below 6.