For two years, I did the thing everyone with thinning hair does: I counted. Hairs in the drain. Hairs on the pillow. The part that kept getting a little wider every time I looked. I stopped taking photos with the flash on, and I'd catch my reflection in a shop window and feel my whole day tilt.
Like most people, I threw money at it — a well-known supplement, a beautifully packaged "clean" serum, a bottle of rosemary oil after it went viral on TikTok. Hundreds of dollars later, nothing had changed — except my scalp, which was now dry, itchy and flaking.
So before spending another cent, I did what I should have done first: I compared the real options against each other — honestly. Here's what I found.
First: why most of it never works
Nearly every product makes the same mistake. It either tries to force hair to grow, or it's "clean" enough to feel safe while doing nothing at all. But thinning hair usually isn't a hopeless genetic sentence, and the follicles generally aren't dead.
They're asleep. Starved. And stuck out of their growth phase.
Hair grows in cycles. When a follicle is pushed out of its active growth phase too early — and starved of blood flow and nutrients at the root — it shrinks and goes dormant. Each cycle the hair returns finer and weaker, until it stops. Stress, hormones (postpartum and menopause), DHT, inflammation and poor scalp circulation are the usual drivers.
"When blood vessels are too constricted, blood no longer reaches the follicles properly… hair weakens and eventually falls out."
So the fix was never to whip the follicle awake with a drug you can't quit — it was to feed it and gently restart the cycle. That reframed how I judged every option below.
