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Over 80% of sunscreen performed below their labelled efficacy (2020)

(www.consumer.org.hk)
230 points mgh2 | 1 comments | 06 Sep 25 19:57 UTC | HN request time: 0.201s | source
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throwawaylaptop ◴[07 Sep 25 06:40 UTC] No.45155924[source]▶
I'm in the SF Bay Area. I spend a lot of time outside. I haven't worn sunscreen since I was a child.

40 yrs old now. Gfs and strangers comment about how good my skin is. No products ever, no sun screen is all I can say.

Obviously if you're in a cave all spring and get dropped off in Cabo in July, put on some sunscreen. But if you can get constant exposure to work your skin up to it, you really don't sunburn.

replies(2): >>45156026 #>>45157237 #
1. bob1029 ◴[07 Sep 25 11:22 UTC] No.45157237[source]▶
I have found a strong correlation between what I eat and how much my skin reacts to the sun. I've been out as long as 2 hours in the Texas summer (zero sunscreen) without any kind of ill effect afterward. This is the best case though. If my diet has recently been trash, I can barely go 20 minutes before I start to feel it. I think consuming high concentrations of seed oil is a big part of what causes it. I don't know the exact mechanics of it biologically, but I do know that if I eat that whole bag of Sun Chips I'll effectively become a vampire for the next 3 days.