The highest SPF available is 100, which blocks out 99% of UVB rays. However, experts don't recommend SPF 100 sunscreen as the best choice. It offers only a slight improvement over SPF 30 and 50, which block 98% of UVB rays.
While a higher SPF number might seem like it provides greater protection, it doesn't necessarily translate to better sun safety. Even SPF 100 won't protect you completely from sun damage.
Here's why:
- Higher SPF doesn't equal more protection: SPF 100 only offers marginally better protection than SPF 50.
- Limitations of SPF: No sunscreen can block 100% of UV rays.
- Potential risks: High SPF products often contain higher concentrations of chemical filters, which may pose health risks.
Instead of focusing solely on the SPF number, it's crucial to choose a broad-spectrum sunscreen with an SPF of 30 or higher, apply it generously and reapply every two hours, especially after swimming or sweating.
