Ready to unpack the cryptic world of SPF? You may have wondered if higher SPF levels indicate more protection from the sun's harmful UVB rays. However, the difference between SPF levels comes down to the percentage of the sun's rays the product can block, and SPF 50+ only offers marginally better protection than SPF 30. Specifically, SPF 30 sunscreen filters 96.7% of UV radiation, while SPF 50+ filters 98%. So, in the end, the right sunscreen is one that suits your needs and skin type. And if your sunscreen is broad-spectrum, water-resistant, not past its expiry date, and you reapply every 2 hours, you're good to go.