A hair loss action plan is a sequence, not a shopping list, and the order matters more than any single item on it. Measure first, because you cannot judge a change you never baselined. See a GP second, because several of the common causes are correctable and free to check. Remove what is working against you third. Only then add something, and only one thing at a time. Ninety days is the shortest honest window for a verdict.

Most people run this backwards. They buy something on week one, add two more things by week six, and at month four have no idea whether anything helped because they never photographed day one and never found out whether their ferritin was on the floor. This page is the sequence in the right order.

Last updated: August 2026. General information for adults, not medical advice.

What does a hair loss action plan actually involve?

A hair loss action plan is a ninety day sequence with four phases: measure, investigate, subtract, then add. Each phase exists because skipping it makes the next one uninterpretable.

The reason to work this way is biological rather than philosophical. Hair grows roughly a centimetre a month and a follicle takes months to respond to any change in its environment, so nothing you do produces visible evidence quickly. That long feedback delay is what makes people stack four interventions at once out of impatience, and stacking is exactly what destroys your ability to learn anything from the experiment.

Note what this page is not. It is not a catalogue of the available options, which we cover separately in our guide to hair loss solutions and what each tier realistically achieves. This page is the schedule you run those options on.

Days one to seven: what should you measure?

Measurement is the phase everyone skips and the one that makes the other three worth doing. All of it is free and it takes about twenty minutes in total.

Take four photographs today. The parting from directly above, the crown from above and behind, the hairline straight on, and one profile. Dry hair, parted in exactly the same place, daylight from the side rather than a bathroom ceiling light, and note which window you used. Repeat monthly in the same conditions. This single step is worth more than anything you could buy this week.

Count sheds on one fixed day a week. Not daily, which drives anxiety and produces noise. Collect what comes out on the same wash day each week. Fifty to a hundred a day is the usual figure quoted, but it varies hugely with how often you wash, so your own trend across six weeks is the useful measurement, never a single frightening morning.

Look at what is coming out. A shed hair has a small pale bulb at the root and is full length. A broken hair has no bulb and is short with a blunt or split end. Miniaturised hairs are fine, short and wispy. Which of those dominates tells you which problem you have.

Write down when it started and what else was happening. Shedding follows its trigger by two to three months, so the relevant event is the one from last winter, not last week. Illness, surgery, childbirth, a crash diet, a new medication, a bereavement. This timeline is often the single most useful thing you bring to a GP.

Our guide to six home checks for thinning hair goes through the measurements in more detail.

Which problem are you actually solving?

Three different things get called hair loss and they need three different responses. Getting this wrong is the most expensive mistake in any hair loss action plan, because the answer to one is irrelevant to the others.

Mixed pictures are normal. Someone with slow pattern thinning who then has a stressful year gets shedding on top of it, and the shedding is what makes them finally notice the thinning. If shedding is your main finding, our guide to telogen effluvium explains the recovery curve.

Days one to fourteen: what should you ask a GP?

The GP appointment is the highest value step in the whole sequence and the one most often postponed in favour of buying something, which is precisely the wrong way round. In the UK it costs nothing.

Ask for the standard blood panel. Ferritin and full blood count, thyroid function, vitamin D, and for women, where relevant, testosterone and sex hormone binding globulin. Low iron and thyroid problems both cause hair changes by themselves, both are common, and both are correctable. Finding one is genuinely good news.

Bring your timeline and your photographs. Ten minutes goes quickly. Being able to say "it started in March, three months after I had flu, and here is the parting in January and in June" gets you a far more useful answer than describing it in general terms.

Ask whether the pattern fits. A clinician can look at the distribution and say whether it matches a pattern picture or something else. Round smooth patches, scalp pain, scaling, or skin that has gone smooth and shiny with no visible follicle openings are all different conversations, and the last one is urgent.

Ask about licensed options and their trade-offs. Medicines licensed in the UK for pattern hair loss exist for both men and women. We are a cosmetics company with no medical professional on record, so we do not name them or advise on them. Ask, and ask about the downsides as well as the benefits, because they work only while used.

Say if it is affecting your mood. The psychological impact of hair loss is well documented and consistently underestimated. It is a legitimate thing to raise.

Days seven to thirty: what should you remove?

Subtraction is the fastest-acting phase of any hair loss action plan, and it is free. Breakage responds within weeks, unlike anything aimed at follicles, so this is where you get your first visible result.

Take the tension out. Tight ponytails, buns, braids, weaves and clip-in extensions pull on follicle openings, and traction damage is fully recoverable early and permanent late. This is the single most under-rated item on the list.

Move your parting. A centimetre either way redistributes both the tension and the sun exposure that have been landing on one strip of skin for years, and a parting that has not moved in a decade always looks the widest.

Detangle properly. From the ends upwards, on conditioned hair, with a wide tooth comb. Most mechanical damage happens here rather than during washing.

Lower the heat rather than eliminating it. A cooler setting and a heat protectant do most of the work, and a rule you will actually keep beats a rule you abandon in a fortnight.

Wash more often, not less, if your scalp is oily or itchy. The belief that frequent washing causes hair loss is wrong. Hairs come out in the shower because the cycle already released them, so washing less simply batches them into a more alarming pile.

Postpone strong chemical processing. Bleaching and relaxing already-fine hair is where breakage accelerates fastest.

Days thirty to ninety: what should you add?

One thing. That is the whole rule, and it is the hardest part of the plan to follow.

Adding four things simultaneously feels like taking the problem seriously and it ensures that in six months you will know something changed and have no idea which item did it. You will then keep buying all four indefinitely, which is expensive, and if one of them was causing scalp irritation you will not identify that either.

Correct a deficiency before supplementing generally. If your blood tests found low ferritin or low vitamin D, that correction is your one thing, and it is the intervention with the clearest evidence behind it. If your tests were normal, taking iron will not help your hair and can cause harm.

If you and your GP decided on a licensed option, that is your one thing. Give it a full six months. Expect a temporary increase in shedding early on from anything that shifts the growth cycle: it is common, it is usually a sign the cycle is moving, and it makes people quit at exactly the wrong moment.

If neither applies, a consistent cosmetic routine is a reasonable one thing. Consistency is doing the work here more than any individual ingredient, because a ninety day comparison only means something if what you did was stable across those ninety days.

Leave devices until later. Low level light therapy has a real literature and a real problem with it, in that much of the trial evidence is manufacturer funded and independent reviewers disagree about it. At several hundred pounds, that uncertainty belongs after the free steps rather than before them.

Where do our own products fit in the plan?

In the subtract phase and as a candidate for the one thing you add, and nowhere near the GP conversation. We make cosmetics. They protect the hair you have and change how it looks, which is worth real money, and it is not the same as changing what your follicles are doing.

The three step routine set, if a cosmetic routine is your one thing

Shampoo, conditioner and a leave-on scalp elixir. The case for a routine rather than a single bottle is consistency, which is the variable that actually decides whether ninety days tells you anything. Cleanse without stripping, condition to cut breakage, and give the leave-on product the contact time a two minute shampoo never gets.

GrowPro Hair Gummies, after the blood test rather than instead of it

Biotin, zinc, selenium and B vitamins. Nutrients contribute to the maintenance of normal hair, and that is the honest claim. Two caveats worth repeating: correcting a deficiency you actually have beats topping up one you do not, and high dose biotin can interfere with several blood tests including thyroid, so stop it a few days before any sample is taken.

Hair Building Fibres, for the ninety days in between

Keratin fibres that cling to existing hair and hide the scalp showing through at a parting or crown. It washes out and changes nothing underneath. Ninety days is a long time to feel self-conscious while you wait, and this solves the Saturday problem in thirty seconds.

Watermans products are 100% cosmetic and do not treat medical hair loss. Individual results may vary. We are vegan, UK made, and have sold over 5 million bottles since 2012.

Day ninety: how do you judge it honestly?

Judging is a specific task with a specific method, and doing it badly wastes the previous three months. Sit down with the photographs rather than looking in a mirror.

Compare day one to day ninety side by side, in the same light. Not from memory, and not by looking at your hair now and thinking about how it used to be. Anxiety and hope both distort recollection heavily in opposite directions.

Check the weekly shed log for a trend, not a number. A single high week means nothing. Six weeks trending downward means something.

Accept that no change can be the right result. For gradual pattern loss, holding steady over ninety days is a genuine outcome rather than a failure, because the untreated trajectory is downward.

Give follicle-aimed changes six months before a real verdict. Ninety days is the minimum for a signal. Six months is where the answer actually lives, and twelve months is where it is settled.

If nothing has moved and the sequence was followed properly, go back to the GP. That is useful information, not a dead end. It usually means the cause was not what was assumed.

What is not worth your first ninety days?

A hair loss action plan is as much about what you decline as what you do, and these all consume attention that the free steps deserve.

Anything promising a fixed timescale. Follicles do not read marketing. A product promising visible results in four weeks is describing a biological impossibility for anything follicle-related.

Anything claiming a rinse-off product changes your hormones. Two minutes of contact time does not alter androgen signalling, whatever the bottle says.

Expensive private testing before free NHS testing. Comprehensive panels sold direct to consumers frequently duplicate what a GP arranges at no cost, and produce marginal results that generate worry rather than answers.

Before and after photographs in advertising. Lighting, hair length, styling, wet versus dry and camera angle can manufacture a dramatic difference with no change in density whatsoever.

Stacking four things in week one. Worth stating twice, because it is the most common way this goes wrong.

Frequently asked questions

How much hair loss is normal in a day?

Fifty to a hundred hairs a day is the figure usually quoted, though it is a rough average rather than a threshold. It varies enormously with wash frequency, because hairs released by the cycle stay put until something dislodges them. Your own trend over six weeks tells you far more than any single day's count.

Can I skip the GP if I am sure it is pattern loss?

You can, and it is usually a false economy, particularly for women. Iron deficiency and thyroid problems are common, they mimic and compound pattern thinning, and they are correctable. The tests are free and finding something is the best outcome available.

How soon will I see anything from the subtract phase?

Breakage improves within two to six weeks, because you are stopping damage rather than waiting for growth. That makes it the only part of the ninety days with a fast visible payoff, which is a good reason to start there.

Should I take a supplement while I wait for blood test results?

Preferably not, and specifically not a high dose biotin product, because it can distort several assays including thyroid function and produce results that send the investigation in the wrong direction. Wait for the sample, then decide with actual numbers.

Is more shedding after starting something a bad sign?

Usually not. Anything that shifts follicles into a new growth phase pushes some resting hairs out first, so a temporary increase in the first few weeks is common and expected. It is also the point at which most people quit, which is worth knowing in advance.

Does diet make a difference?

Adequate protein, iron and overall energy intake matter, and deficiency reliably shows up in hair. Beyond correcting a genuine shortfall, eating more of a particular food does not add density. Rapid weight loss is the diet factor that most reliably harms hair, typically two to three months later.

What if it is getting worse during the ninety days?

Continue the plan but bring the GP appointment forward if you have not had one. Getting worse is information: it can mean an ongoing shedding episode that has not yet turned the corner, or a cause that has not been identified. Round patches, pain, scaling or smooth shiny skin should not wait.

Is ninety days really the minimum?

For anything aimed at follicle behaviour, yes, because hair grows about a centimetre a month and a follicle needs a full cycle to show a change. Breakage improves faster. Shedding typically resolves over six to nine months. Nothing shortens these timescales.

Sources and references

• NHS guidance on hair loss, for the presentations that warrant a GP appointment and for what general practice can arrange without charge in the UK.
• NICE Clinical Knowledge Summaries on hair loss, on androgenetic alopecia and on iron deficiency anaemia, for the standard investigation panel and the thresholds at which iron is considered low.
• British Association of Dermatologists public information on traction alopecia and on scarring alopecias, for the fully recoverable early stage of traction damage and the significance of losing visible follicle openings.
• Published work on telogen effluvium, for the characteristic two to three month delay between trigger and shedding, and the typical six to nine month recovery.
• Regulatory notices and laboratory medicine literature on high dose biotin interference in immunoassays, including thyroid function and cardiac markers.
• Systematic reviews of low level light therapy in androgenetic alopecia, for both the reported effects and the repeated criticism that a large share of trials are industry funded and heterogeneous in wavelength and dose. Independent reviewers reach different conclusions from the same evidence.
• Literature on nutritional deficiency and hair, in which correcting a genuine shortfall helps and supplementation in the absence of deficiency does not.
• UK and EU authorised nutrition claims, for the permitted wording that nutrients contribute to the maintenance of normal hair.

The short version

Run the sequence in order and the ninety days will actually tell you something. Photograph day one before you buy anything, because that is the free step that makes every later comparison possible. Work out whether you are dealing with loss, shedding or breakage, because the responses share nothing. Get the GP appointment early, since iron and thyroid are common, correctable and free to check, and finding one is good news rather than bad. Subtract next: tension, heat and rough detangling cost you hair every week and cost nothing to stop, and this is the phase that pays off within weeks. Then add exactly one thing and leave it alone for six months. At day ninety, judge from the photographs and the shed trend rather than the mirror, and remember that no change can be a genuine result. A hair loss action plan run this way costs almost nothing for the first month and leaves you with an answer instead of a cupboard full of half-used bottles.