New: our own Hairmetry line. Every ingredient explained
Hairmetry

Free · No account · Every claim cited

Your hair.
Understood. Improved.

Answer 11 quick questions. Get a routine in the order you do it, each step tagged by what matters most, with how long it takes to work.

Find my routine Start with a photo

The photo is optional and only suggests your hair type. Analysed in memory, never stored.

  • 1612 studies cited
  • 235 ingredients explained
  • 10 easy guides
  1. A standard or lightly clarifying shampoo, lathered on the scalp Notice it: From the first washMust do

    Do this

    • Lather the shampoo on your scalp only
    • Use a standard or lightly clarifying shampoo

    Why: Oil runs down straight hair fast, so a shampoo that cleans oil well keeps it fresh. Washing does not make you greasier.

    HAIRMETRY Our pick Daily Shampoo Shaw 1979 ↗
  2. A light conditioner on the ends only Notice it: From the first washMust do
  3. Scrunch or plop, never rub Notice it: From the first washRecommended
  4. A heat protectant before any hot tool, and never on wet hair Notice it: Works from the first useRecommended
  5. A light mousse or cream, scrunched into wet hair Notice it: From the first washRecommended
The top steps for an example wavy, oily-scalp profile, built by the same rules as your results.

The basics

What most people get wrong

Washing, drying, conditioning. Simple things, with real numbers behind them.

How it works

A routine built for your hair

No guessing, no sponsored picks. A fixed set of rules, each linked to the research, turns your answers into a plan.

  1. Step 1

    Answer 11 questions

    Curl pattern, scalp, strand thickness, history, hairline. About two minutes.

  2. Step 2

    Optional photo

    A photo can pre-fill your hair type. Analysed in memory, never stored.

  3. Step 3

    Your routine, in order

    Steps in the order you do them, each marked Must do, Recommended or Bonus, with when you will notice it.

  4. Step 4

    Your ideal products

    The formulas from our own line that fit your hair, and why they work.

The usual way

  • Advice from ads
  • One routine for everyone
  • Ten products, no order
  • No idea when it works

The Hairmetry way

  • Every step cited
  • Built for your hair type
  • In the order you do it
  • Time frames you can check

Hairmetry

Formulas with nothing to hide

No fragrance, no harsh preservatives. Every ingredient there for a reason you can read. In development.

See all 13 products →

Insights

The niche science, made simple

All insights →

  • Men with pattern baldness had more scalp fat and one more yeast

    In 118 Japanese men, those with pattern hair loss had more sebum triglyceride, palmitic acid and Malassezia restricta. It is only a link, written by drug-company staff, and cause is unknown.

    Source ↗

  • Washing weekly with ketoconazole shampoo cut dandruff relapse from 47% to 19%

    In 575 people, 88% cleared on 2% ketoconazole shampoo twice weekly. In the 6-month follow-up, relapse was 19% with weekly ketoconazole versus 47% with placebo shampoo.

    Source ↗

  • Hair-root cells in a dish mostly made the enzyme finasteride barely blocks

    Hair-root cells grown from beard and scalp made mostly type 1 5-alpha-reductase (a DHT-making enzyme), most in the beard. A type 1 blocker beat finasteride in beard cells. Dish study; tissue studies disagree.

    Source ↗

  • Untreated men lost about a quarter of their hair in five years

    In the placebo group of the main finasteride trials, men lost about 239 hairs (26.3% of density) in the studied scalp patch over five years, and 75% looked worse in photos.

    Source ↗

  • One minute of bleach nearly tripled hair's inner surface

    Gas measurements showed that bleach made many tiny pores in hair within the first minute, nearly tripling its internal surface area. After 10 minutes these merged into bigger pores. Lab test on hair fibres.

    Source ↗

  • Some people grow coarse kinky hairs after puberty

    Six people developed kinked, coarse hairs after puberty at the front, temples and crown, the same places where pattern baldness starts. The authors think hormones (androgens) drive it. A small case report, not a controlled study.

    Source ↗

This is not medical advice, just handy to know. Talk to a doctor if you want to explore this option further.

FAQ

Questions

Is it really free?

Yes. No ads, no affiliate links, no account. Your results live in a link you can save or share.

Where does the advice come from?

From published studies. Every step, guide and ingredient links to the paper behind it, and we say when the evidence is thin, only in a lab, or paid for by a company.

What happens to my photo?

It is analysed in memory on our own server and deleted straight away. It only suggests your hair type; you confirm every answer.

Can you buy the Hairmetry products?

Not yet. Hairmetry, our own line, is in development. The pages show what goes in each formula and why.

Is this medical advice?

No. It is educational information. For hair loss or scalp problems, talk to a doctor or dermatologist.

Ready for better hair?

Two minutes. No account. A routine you can actually follow.

Find my routine