Bryan Johnson· Author
Use sunscreen that protects against UVA and UVB.
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The evidence is convergent. Multiple independent sources reach the same conclusion, the underlying mechanism is well-characterized, and even the field's most cautious voices treat it as worth doing.
Use sunscreen that protects against UVA and UVB.
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Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
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I just would look for physical sunscreen that has broad-spectrum in at least an SPF 30 that's pretty simple
so over thirty you don't get that much more benefit so at but you should be using at least a thirty but that's talking about UVB if you want to protect yourself from uva and UVB which you should you should be using a sunscreen that says broad-spectrum