How High is Too High? Debunking SPF Myths

Sun Protection Factor (SPF) has been a long-standing measure for sunburn prevention. But with SPF numbers soaring, many wonder if higher is genuinely better. Let's demystify some prevalent SPF myths.

  1. SPF 100 Equals 100% Protection: Not quite. No sunscreen offers complete protection. SPF 30 blocks around 97% of UVB rays, while SPF 50 blocks about 98%, and SPF 100 about 99%. The increase in protection is minimal with higher SPFs.

  2. Double the SPF, Double the Duration: Wrong. A higher SPF doesn't mean you can stay in the sun twice as long. Reapplication every two hours or after swimming/sweating is vital, irrespective of SPF rating.

  3. Only Fair Skins Need High SPF: All skin tones can be damaged by UV rays. Although darker skins might not burn quickly, the risk of UV-induced skin aging and cancers remains.

  4. SPF 100 is Twice as Effective as SPF 50: Misleading. The efficacy isn't double; it's a difference of 1%. While high SPF provides added protection, it's essential to focus on broad-spectrum coverage and diligent application.

The key takeaway? Choose a broad-spectrum sunscreen, apply generously, and reapply often. Don't get solely fixated on the SPF number.

XJ BEAUTY