The float test, the drop test — neither one actually measures hair porosity. Here's what they're really telling you about your hair, and why that still matters.
Water isn't good or bad for your hair — it's a tool. Here's what the research actually says about hydration, bonds, and why your smoothest hair has less water in it.
I've heard "hygral fatigue" used as the reason not to wash your hair every day. After reading through the actual studies, I'm not convinced water going in and out of your hair causes real damage.
You've seen the TikTok trend: spray a heat protectant on a receipt, run a flat iron over it, and call it science. I put it to the test — and the results surprised me.