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Deciphering SPF numbers: Finding the best protection for your skin
Choosing the Right SPF: A guide to optimal sun protection
Demystifying SPF: Everything you need to know about Sun Protection Factor
Skin protection levels according to SPF ratings are as follows:
- Low protection: SPF below 15
- Medium protection: SPF from 15 to 29
- High protection: SPF from 30 to 49
- Very high protection: SPF above 50
UVB sunblock effectiveness based on common SPF ratings:
- SPF 15 shields against 93% of UVB rays
- SPF 30 shields against 97% of UVB rays
- SPF 50 shields against 98% of UVB rays
The SPF index indicates the number of photon particles blocked. If you use SPF 15, out of 100 UVB photons from sunlight, you can block 93 particles, letting 7 pass through.
Therefore, it's recommended to use sunscreen with at least SPF 15 along with other measures such as wearing sunglasses and avoiding midday sun to help prevent skin cancer.
Here at TechTipsSoftware.com, we've explained what SPF is and how sunscreen's SPF index correlates with sun protection.
We hope through the information shared above, you'll have a clearer understanding of SPF index and be able to choose the best sunscreen to protect your skin.
