The intense sun during this heat wave has made UV values skyrocket to very high levels of 10 or 11. With summer just starting on Friday, it is a great reminder to keep your skin safe from the sun.

For example, SPF 50 stops 98% of UVB rays, while SPF 100 blocks 99% of them. No sunscreen provides 100% protection from damaging UV rays.

Most weather apps list the UV index. A reading of 1 or 2 is Low, 3 to 5 is Moderate, 6 to 7 is High, 8 to 10 is Very High, and 11 or more is Extreme.

What we know and don’t know There’s a growing body of evidence that both chemical and mineral UV filters have the potential to harm wildlife, including coral reefs, at high concentrations.

Not to mention, it’s the Holy Grail SPF for Kyle Richards. It’s clear that the EltaMD UV Skin Recovery SPF 50 Sunscreen is more than your protective sunscreen — it’s skin recovery.

EltaMD UV Clear SPF 46 is the Amazon sunscreen everyone’s talking about. Great for acne-prone skin, it calms, protects and leaves no white cast.

Very high UV levels of 10 or 11 have been common during the heat wave and intense sunshine. Dermatologists share the best ways to keep your skin safe.