Sun Tan Lotion Spf Meaning

Spf as most people are aware stands for sun protection factor.

Sun tan lotion spf meaning.

Spf or sun protection factor numbers were introduced in 1962 to measure a sunscreen s effect against uvb rays. 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. A little sunscreen will see me through the day. La roche posay anthelios 50 ultra light tinted mineral sunscreen spf 50 this oil free sunscreen has a ton of spf which honestly can only be a good thing.

The fda recommends using a sunscreen that has an spf of 15 or higher that says broad spectrum on the label. Despite being spf 50 it features a natural tint for all skin tones and all sensitive skin types so you can still glow without fear of turning into a lobster. Continued sunscreen myth 4. The higher the number of course the more protection the sun block provides against uv rays and the safer you should be from getting sun burn but it can also be more complex than this.

For example if it typically takes you 15 minutes to burn without sunscreen and you apply an spf 10 it will take 10 times longer 2 5 hours. This is the number then that appears on the bottles of sun block and sun tan lotion. According to the skin cancer foundation 3 percent of uvb rays can enter your skin with spf 30 and 2 percent with spf 50. These tanning sunscreens which typically have an spf 4 to spf 8 do not provide enough sun protection especially for kids.

You won t find any products claiming to be suntan lotions anymore. Spf stands for sun protection factor. To determine a sunscreen s spf testers round up 20 sun sensitive people and measure the amount of uv rays it takes them to burn without sunscreen. If your skin would normally burn after 10 minutes in the sun applying an spf 15 sunscreen would allow you to stay in the sun without burning for.

Spf or sun protection factor is a measure of how well a sunscreen will protect skin from uvb rays the kind of radiation that causes sunburn damages skin and can contribute to skin cancer. This is also how you can still get tan while wearing sunscreen. Instead a product that is considered to be a suntan lotion is usually a sunscreen with an spf of less than 15. Then they redo the test with sunscreen.