Tracking Hair Growth Treatment Results Properly
Tracking hair growth treatment results is an experiment, and most people run it badly. They change four things at once, judge it at week six, compare a bad hair day against a good one, and conclude nothing works. Done properly it takes five minutes a month and gives you a clear verdict in a quarter. Here is how to set the baseline, isolate one variable, and read the answer honestly.
Key takeaways
- Set a baseline before day one. Without it you have opinions, not results.
- Change one thing at a time. Four changes at once produce an unreadable answer.
- Give it three months minimum, because hair only reports back through new growth.
- Judge photographs, not the mirror. Your eye adapts to gradual change and the camera does not.
- Know which question you are asking: hair loss, hair shedding and hair breakage give verdicts on different schedules.
- Cosmetic routines are a cosmetic question. Anything medical belongs with your GP.
Why is tracking hair growth treatment results so easy to get wrong?
Because hair reports back late and your memory is unreliable. Hair grows about 1.25 cm a month, and anything that changes the picture does so by influencing follicles that then have to push new hair to visible length. That means the earliest honest read is around month three, and the informative one is around month six. Anyone judging at week six is reading noise.
The second problem is that you are the least objective observer available. You see your hair every day under changing light, at changing lengths, on days when it behaves and days when it does not. Your eye adjusts to gradual change so completely that a real improvement can pass unnoticed while a single bad hair day feels like proof of failure. This is exactly why tracking hair growth treatment results needs a fixed record rather than an impression.
What should your baseline contain?
Record all of this on the day before you change anything. It takes about ten minutes once, and everything afterwards is a comparison against it.
- Four photographs in fixed conditions: parting from directly above, crown, hairline, and length from behind. Same room, same light, same distance, hair dry and in its usual state.
- One stretched length measurement from a fixed landmark, such as the centre of the hairline or the top of one ear, to the end of a chosen section.
- A shed count from one normal wash day, so you have your own number rather than someone else's average.
- A written description of what is actually bothering you, in your own words. "The parting is wider than last year" and "my ponytail feels thinner" are different complaints with different verdicts.
- The current routine in full, including anything you take by mouth, so you know what you are changing from.
That last item is the one people skip and later regret. If you cannot describe the routine you started from, you cannot say what the change actually was.
Are you testing for hair loss, hair shedding or hair breakage?
Three different questions, three different verdict dates, and three different pieces of evidence. Mixing them up is the most common reason a perfectly good record gives a confusing answer.
| The question | The evidence that answers it | When to read the verdict |
|---|---|---|
| Hair loss, meaning follicles miniaturising or damaged | Parting width and crown density across monthly photographs | Six to twelve months, and it is a GP question first |
| Hair shedding, meaning too many follicles resting at once | Monthly shed count against your own baseline | Three to six months |
| Hair breakage, meaning the fibre snapping mid strand | Stretched length gain, plus how many short broken pieces you find | Four to eight weeks, the fastest of the three |
If your complaint is breakage, you will have an answer within two months and it will be a clear one. If it is pattern loss, no cosmetic routine is going to change the underlying mechanism, and the right move is a GP conversation early rather than a twelve month wait to confirm what a doctor could have told you at the start.
Get a discount on the thinning hair range
Join the Watermans mailing list and we will email a discount code straight to your inbox, so you can try the thinning hair range for less. Vegan, made in the UK, over 5 million bottles sold since 2012.
What does the monthly checkpoint look like?
Once a month, on a fixed date, repeat the baseline in about five minutes. Same four photographs in the same light, the same stretched measurement from the same landmark, the same shed count on a normal wash day, and one line of notes on anything unusual that month. Illness, a stressful stretch, a new colour, a change in diet, a course of medication from your GP. Those notes are what let you explain a result later instead of guessing at it.
Then do nothing with the data for three months. Reading month to month invites overreaction, because normal variation is larger than one month of real change. What you are looking for is a trend across three or four readings, and a trend cannot exist until you have them.
For the mechanics of the measurements themselves, our guide to measuring hair growth properly covers landmarks, stretching coily hair and shed counting in detail. This page is about designing the test around those measurements.
What are the four mistakes that ruin a record?
1. Changing more than one thing
A new shampoo, a supplement, a different heat routine and a new pillowcase in the same fortnight produce exactly one piece of information: something changed, or nothing did. You will never know which element deserves the credit, which means you cannot drop the useless ones or keep the useful one when money gets tight.
2. Judging too early
Week six tells you nothing about a follicle. It can tell you about breakage, because breakage improvements show up quickly, but for anything involving new growth the first honest read is month three. Most abandoned routines are abandoned in month two.
3. Inconsistent conditions
Bathroom light one month and kitchen light the next, wet hair one month and dry the next, stretched once and unstretched the following time. Every one of these introduces more variation than the effect you are trying to detect. Fix the conditions and the signal appears.
4. Comparing against a memory
"It definitely used to be thicker" is the least reliable evidence in tracking hair growth treatment results, and it is the evidence most people rely on. The photograph from month zero is not open to negotiation, which is precisely what makes it useful.
How do you read the verdict at month three and month six?
| What the record shows | What to do next |
|---|---|
| Shed count down, photographs steady | Working. Keep going and reassess at month six. |
| Length gaining, fewer broken pieces | Working on breakage. This is the fastest win available. |
| Fine new hairs at the parting | Early and encouraging. Do not change anything yet. |
| Nothing at all by month six | Stop guessing. GP appointment, and ask about ferritin, vitamin D and thyroid function. |
| Parting visibly wider than month zero | A medical question, not a product question. See a GP. |
The month six checkpoint deserves emphasis. Six consistent months with no change in any of your three measures is genuine information rather than failure, and it usually means the cause sits somewhere a shampoo cannot reach. Ferritin, vitamin D and thyroid function between them explain a great deal of otherwise unexplained shedding, and they are ordinary blood tests. For what the timeline should look like when something is working, our month by month new growth timeline sets the expectations.
Where should the record actually live?
A single note or spreadsheet on your phone, and one dedicated photo album. That is the entire tooling requirement for tracking hair growth treatment results, and anything more elaborate tends to get abandoned by month two, which defeats the point.
Six columns cover it: the date, the stretched length, the shed count, what you changed this month if anything, a one line note on illness or stress, and a link to that month's photographs. Keeping the photographs in their own album rather than scattered through a camera roll is the small piece of housekeeping that makes the record usable a year later, when you are trying to work out whether last autumn was worse than this one.
One optional refinement is worth the effort: include a fixed object in the photograph as a scale reference, such as a ruler held beside the parting or a bank card. If your distance from the mirror drifts slightly between months, a scale reference lets you correct for it rather than wondering whether the difference is real. None of this needs an app, and an app that measures nothing new simply adds a subscription to a habit you could keep in a notes file.
What should you actually be testing?
One thing. If you want to test a complete routine, test the routine as a single unit and do not add anything else to it. If you want to know whether one product earns its place, test that product alone against your existing routine.
Grow Me & Grow More Set
If you are testing a routine rather than a single bottle, this is the day and night pair: a biotin, caffeine and rosemary shampoo plus an overnight scalp elixir. One routine, one variable, which is exactly what a three month record needs. Vegan and made in the UK.
Grow Me Shampoo
For a single variable test, swap one bottle and change nothing else. Sulphate free, with biotin, caffeine and rosemary, supporting a healthy scalp environment and fuller looking hair while your record does the judging.
Frequently asked questions
How long should a test run before I decide?
Three months minimum for anything involving new growth, and six months before you conclude that nothing is happening. Breakage is the exception and gives you an answer within about two months.
Can I test two products at once if they do different jobs?
You can, but you are then testing the combination rather than either one. That is a legitimate experiment as long as you accept the verdict applies to the pair, and that dropping one later returns you to guesswork.
What is the single most important habit in tracking hair growth treatment results?
Fixed conditions for the monthly photographs. Same room, same light, same distance, dry hair. Everything else in the record is useful, but inconsistent photographs make the whole exercise unreadable.
Should I count sheds every day?
No. Once a month on a normal wash day is enough, and daily counting turns a measurement habit into an anxiety habit. You want your own trend, not a daily number.
What if my hair looks worse at month two?
Common, and often temporary. An increase in shedding after a change frequently reflects resting hairs clearing out ahead of new ones. If it is still rising at month three, that is different, and worth a GP appointment.
Does the season affect my results?
Yes. Shedding tends to be heavier in autumn and growth slightly quicker in summer, which is a real reason to compare a trend across several months rather than reacting to one reading in October.
When is this no longer a tracking question?
When the photographs show a parting that is visibly wider, when there are defined patches, or when shedding has stayed well above your baseline for more than three months. Those are follicle questions for a GP rather than record keeping questions.
The short version
Tracking hair growth treatment results is a discipline rather than a product. Take a baseline before you change anything, alter exactly one variable, repeat the same four photographs and one measurement on a fixed date each month, write down anything unusual, and refuse to reach a verdict before month three. At month six you will have a real answer instead of a feeling, and if that answer is nothing, you will know to take the question to a GP rather than to another shelf.
Watermans is a UK family business that has sold over 5 million bottles since 2012. The range is vegan and cruelty free.
Watermans products are 100% cosmetic and do not treat medical hair loss. Individual results may vary.
