Articles on hair loss and scalp health, from the biology of androgenetic alopecia to the treatments that actually hold up in the research.
By Philippe Boissard, hair-loss researcher and author. M.Sc., Aalborg University. Updated June 2026. Every few years the internet decides the cure for baldness has arrived. Most times it’s vaporware. PP405 is different, and I say that as someone who’s professionally…
Randomized trials show oral and topical minoxidil are comparable for hair density. Here is what the evidence actually says, and how to choose between them.
By Philippe Boissard, hair-loss researcher and author. M.Sc., Aalborg University. Updated June 2026. Rubbing your head to grow hair sounds like the kind of free advice you should ignore. I almost did. Then I dug into the cell biology of…
By Philippe Boissard, hair-loss researcher and author. M.Sc., Aalborg University. Updated June 2026. Rosemary oil went viral because of one line: a study showed it works as well as minoxidil. That line is technically true and badly misleading at the…
The Dhurat 2013 RCT found 82% of men using microneedling plus minoxidil reported over 50% improvement. Here is what the evidence actually shows and where the caveats live.
By Philippe Boissard, hair-loss researcher and author. M.Sc., Aalborg University. Updated June 2026. This is the question my audience asks me more than almost any other. A guy finally starts lifting seriously, buys the most evidence-backed supplement on the shelf,…
By Philippe Boissard, hair-loss researcher and author. M.Sc., Aalborg University. Updated June 2026. Ask the internet about finasteride side effects and you’ll get two answers, both wrong. One side says it’s harmless, take it and forget it. The other says…
JXL069 is a preclinical MPC inhibitor being sold as a research chemical for hair regrowth. Here is what the mechanism means, and why the hype is running ahead of the evidence.
By Philippe Boissard, hair-loss researcher and author. M.Sc., Aalborg University. Updated June 2026. This one surprised me when I first dug into it. Smoking and hair loss sounds like a wellness-blog scare, the kind of claim that falls apart under…
By Philippe Boissard, hair-loss researcher and author. M.Sc., Aalborg University. Updated June 2026. The honest answer is: partly, sometimes, and it depends entirely on one thing most people never check. A receding hairline isn’t a single situation. Some of those…