While it's true that SPF 30 blocks nearly 97% of UVB radiation, and SPF 50 blocks 98%, the difference in protection between SPF 30 and higher SPF sunscreens is minimal.
- SPF 30 is generally sufficient for most people, especially for everyday use.
- Higher SPF sunscreens might offer a slightly higher level of protection, but the difference is not significant enough to justify the higher cost or potential for misleading consumers.
However, it's important to remember that SPF only measures protection against UVB rays, which cause sunburn. It doesn't protect against UVA rays, which cause premature aging and skin cancer. Therefore, it's essential to choose a sunscreen with broad-spectrum protection, which blocks both UVA and UVB rays.
Ultimately, choosing the right SPF depends on individual needs and preferences. For people with sensitive skin or spending extended periods outdoors, a higher SPF might be beneficial. But for most people, SPF 30 is a reliable and affordable option.
