Louisa Nicola debunks the claim that sunscreen ingredients seep into the brain, calling it a retracted theory. She explains that dose determines toxicity and uses La Roche-Posay daily, noting its European formula contains Bemetrizanol while the U.S. version doesn't, a difference she frames as protective rather than concerning.
Set the record straight on sun cream, please.
I mean, look, this came out because a very popular scientist claimed, which there's been no— and I think he's retracted his claim— he said that it can seep through your skin, go into the blood-brain barrier, and affect the brain. It can't do that, okay? If you'd be swallowing the, the sunscreen, you know, but it's not. Sun cream is not bad. It's actually doing more good than harm. Again, the dose makes the poison. I put sun cream on every single morning. I do this to protect myself. The one that I do take does contain Bemetrizanol, and I get the La Roche-Posay. I don't know how to pronounce it, and it's La Roche-Posay. Yes, something like that. But guess what? You get the bottle, right, the one from Europe. You get the identical bottle. In America, you turn them over. America doesn't contain Bemetrizanol.
Is that a good thing or a bad thing? It's a good thing. That's the thing that's protecting you. And then so why are the Yanks leaving it out?