The Growth Lab

Most people asking "is my hair growing" aren't really asking that. They're asking whether it's getting thicker. Those are two...

Type "what causes hair thinning" into Google, and you're really asking something narrower. What's the one thing I need to...

Do Hair Vitamins Actually Grow Hair, or Just Support What's Already There Here's the question I get more than almost...

Here's what most people actually want to know: hair grows about half an inch per month, on average. That's roughly...

Key Takeaways Hair density and hair thickness are different things — and confusing them leads to the wrong fix. Density...

Somewhere around the eighteen-month mark of staring at the same length in the mirror, most people start asking the wrong...

It can be incredibly frustrating to look in the mirror and notice that your hair isn't what it used to...

I've Held Hundreds of Shed Hairs in My Hand. This Is What They're Trying to Tell You. Early in my...

You've seen the TikTok videos. The Reddit threads. Everyone swearing that scalp massage transformed their hair. But does it actually...

Your hair won't grow past your shoulders. You've tried the serums, the supplements, the $80 bottles your hairstylist swore would...