There’s been a lot of people testing heat protectants on receipts lately. You spray a heat protectant on a thermal paper receipt, then use a flat iron hair straightener on it. Since receipt paper turns black with heat, the receipts that stay white have the more effective heat protectants… … Or so the logic goes, anyway. But does this test …
Your scalp’s itchy and inflamed – and none of the products you’ve tried seem to be working. And now, maybe your hair’s even thinning. Here’s the problem: Most scalp products aren’t treating the right cause, and no one’s really explaining what that is. And a lot of scalp products actually make things worse. I’m the owner of a problematic scalp, …
I’ve become a bit of an airborne transmission nerd during the pandemic. Every once in a while I’ll share some of the tools I use on social media, and I’ve realised quite a lot of other people are also interested in how to not get sick, or at least get sick less, outside of getting vaccinated. So here’s a quick …
You might have seen that Hawaii has banned certain sunscreens that have been linked to coral bleaching. In particular, it’s the organic “chemical” sunscreen ingredients oxybenzone and octinoxate that have been banned. It sounds like a great victory for the environment, right? But if you search a little past the headlines, you’ll find that there are actually a lot of …
Since my post on the science behind red light treatments, many people have asked me if light treatments make hyperpigmentation worse. This is a bit complicated to untangle, given the relative lack of data and the huge diversity of red light products. So this post is somewhat speculative – but I hope it’s helpful if you’ve been wondering! Note: I’m …
Red light is everywhere – you’ll see it used by celebrities, skincare influencers, and biohackers (not sure why male wellness influencers get their own special name). What does it do, and which products actually work? Let’s dig into the science behind red light therapy, or photobiomodulation. The video version of this post was part of a 3-way collaboration with Becky …
The most controversial topic in Dr Andrew Huberman’s skincare episode is probably sunscreen safety, which is hugely misunderstood even by scientists and medical doctors. Much of the confusion comes from differing sunscreen regulations around the world, and the fact that “not safe” has different meanings in everyday, regulatory and toxicological contexts. This is part 2 of my articles responding to …
A little while back, Dr Andrew Huberman, a Stanford neuroscientist with a massive podcast, released an episode called “How to Improve Skin Health & Appearance”. It had a bunch of slightly weird recommendations if you’re familiar with skincare science. He mentioned some of his sources, but didn’t have any experts talking. 1.5 months later, he released another skin episode, this …