Hair loss · 6 min
How much hair loss is normal?
The number everyone quotes is 50 to 100 hairs a day. It is close to useless, and there is a better question to ask.
Journal
Writing about hair, scalps and the research behind them.
Educational, evidence-aware, and without the sales pitch. Where the evidence is thin, I say so.
Hair science · 5 min
Why hair loss shows up months after the thing that caused it
The most confusing feature of hair loss is its timing. Understanding the delay explains why so many people never find the cause.
Trichology explained · 6 min
Trichologist or dermatologist: who to see, and when
They are not alternatives, and choosing between them is usually the wrong framing. Here is what each is actually for.
More in preparation: What a “normal” blood test doesn’t tell you about your hair and Shedding, thinning or breakage: how to tell which you have.
Newsletter
Occasional letters.
Notes on hair, scalps and the research behind them. Roughly monthly, sometimes less. No offers, no urgency, unsubscribe whenever you like.