Short answer: the order you spend money in matters far more than what you buy. Almost everything with good evidence behind it for hair is either free, cheap, or a prescription medicine. Almost everything expensive sitting between those two is unproven. People worried about their hair routinely spend three hundred pounds on supplements, gadgets and "advanced" treatments before doing the free blood test that would have explained the whole thing.

This guide is about that order. It is written for anyone in Blyth trying to work out where their money should actually go, and it deliberately covers everyday spending on products, supplements and devices rather than how to vet a clinic. If you want to know whether the twenty-pound shampoo is better than the four-pound one, whether hair vitamins are worth it, and whether that laser cap is anything other than an expensive hat, this is the page.

Do the free things first

This is not filler advice. Each of these has either a real evidence base or a real diagnostic value, and all of them are free.

1. Get bloods from your GP. Full blood count, ferritin, thyroid function, vitamin D and B12. Ask for the actual numbers rather than being told they are normal, because ferritin in particular can sit inside the laboratory reference range while still being low enough to matter for hair. This one test decides whether a supplement is worth buying at all.
2. Take a monthly photograph. Same spot, same light, same parting, from above and from the front. Hair changes too slowly to judge in a mirror and anxiety makes you a poor observer of your own head. Photographs are the only honest way to know whether anything is working.
3. Work out breakage versus shedding. Look at the root end of the hairs you find. Full length with a small white bulb means shedding. Short with no bulb and blunt ends means breakage. These need completely different responses, and buying the wrong product for the wrong problem is the most common way money gets wasted.
4. Turn the heat down. Lower dryer and straightener settings, and never straighten hair that is still damp. Free, and it prevents more visible damage than any product reverses.
5. Loosen your styles. Tight ponytails, buns and braids worn in the same place daily cause traction damage over years. Moving the tension around costs nothing.
6. Match your washing to your scalp. An oily scalp usually needs washing more often, not less. Washing does not cause hair loss.
7. Check your own medicine cabinet. A number of common prescriptions can contribute to shedding. Ask a pharmacist, which is also free, before assuming your shampoo is at fault.

If you are not sure which problem you are dealing with in the first place, our guide to working out why your hair is thinning is a better starting point than any shopping list.

What a sensible spend actually looks like

Here is the whole category laid out by what it costs and what you actually get for it.

Does an expensive shampoo work better than a cheap one?

Mostly no, and it is worth understanding why. All shampoos do the same fundamental job: surfactants lift oil and dirt so water can rinse them away. The differences between a four-pound bottle and a twenty-five-pound bottle come down to which surfactants are used and how harsh they are, how good the conditioning agents are, fragrance and feel, and whether there are useful extras such as an antifungal for flaking.

Those differences are real, but they are differences in comfort and finish. A harsh cheap shampoo on a dry scalp genuinely does feel worse and can leave hair rougher and more prone to snapping, so there is a floor below which you are false-economising. There is also a ceiling, and it is lower than the market pretends. Above roughly fifteen pounds you are largely paying for scent, bottle and brand.

The claim to be sceptical about is any shampoo positioned as a treatment for hair loss. A shampoo sits on the scalp for a minute or two and then goes down the drain. That is not a delivery system for anything meaningful, whatever the ingredient. Our piece on using conditioner properly explains where products genuinely earn their place.

Are hair supplements worth the money?

This is where most of the wasted spending in the category happens, so it is worth being precise rather than diplomatic.

Supplements correct deficiencies. That is the whole mechanism. If your ferritin is genuinely low, correcting it can help your hair, sometimes considerably. If your vitamin D is low, correcting it is worth doing for many reasons. If your B12 is low, same again.

If you are not deficient, more does not help. There is no dose-response benefit that continues past sufficiency. Taking iron you do not need is actively unwise, since excess iron accumulates and causes harm. High-dose biotin does not improve hair in people who are not deficient, and deficiency is genuinely rare. Worse, high-dose biotin is well documented to interfere with several laboratory blood tests, including thyroid and cardiac markers, which can produce misleading results at exactly the moment you are trying to get a diagnosis.

The practical rule: test, then treat what is actually low, and take the specific thing that is low rather than a twenty-ingredient hair blend at thirty pounds a month. Our articles on biotin and hair growth and thyroid-related hair loss go into what those numbers actually mean.

Devices, gadgets and the rest

The home device market grew because it sits in the gap between free advice and prescription medicine, which is exactly where hope gets monetised. Here is the honest state of it.

Five checks before you buy anything

1. Does the claim describe a mechanism that could survive a two-minute rinse? If not, the claim is decoration.
2. Are the before-and-after photographs comparable? Different lighting, different hair length, one wet and one dry, or a different camera angle all make the comparison meaningless. This is the most common trick in the category.
3. Is there a subscription attached? Subscriptions are designed around the fact that you cannot assess hair in under three months. Buy a single unit first.
4. Is the person recommending it also selling it? Not automatically disqualifying, but worth knowing. Ask directly.
5. What is the total cost over a year, and what happens if you stop? Anything requiring indefinite spending to maintain a result should be entered into deliberately, not drifted into.

Where our own products sit

In fairness, we sell hair care, so here is the honest placement. Cosmetic products belong in the under-thirty-pounds tier of that table. They clean, condition, protect against heat and make hair look and feel better. They do not treat pattern hair loss, and we do not claim they do. If a brand tells you otherwise, including us, that is your cue to walk.

Protect Me® Heat Protection Spray
£13.95
If you use a dryer or straighteners, this is the highest-return cosmetic purchase on this page. Preventing heat damage is far cheaper than trying to disguise it afterwards. Protects to 230°C, also helps with frizz and colour.
View Protect Me heat protection spray

Grow Me® Shampoo & Conditioner Set
£26.95
Sulfate-free cleansing plus a conditioner aimed at reducing breakage, which is the part that visibly changes how hair looks. Cheaper bought together than separately. Vegan, made in the UK, cosmetic care only.
View the shampoo and conditioner set

When paying genuinely is worth it

None of this is an argument for never spending anything. It is an argument for spending in the right order.

A GP appointment is free and comes first. Bloods, a look at your medications, and a referral if something needs one. There is no private service that replaces this step, only ones that charge you for it.

A trichologist consultation, roughly sixty to a hundred and fifty pounds, can be worth it when the picture is genuinely confusing and you want a detailed scalp assessment. Two caveats. They cannot prescribe, so anything needing medication routes back to a doctor. And "trichologist" is not a protected title in the UK, so ask what qualification the person holds, whether they are registered with the Institute of Trichologists or the Trichological Society, and whether they sell their own products.

A dermatologist is the right spend when there is scalp disease, scarring or anything needing a formal diagnosis or a biopsy. Free on GP referral, or roughly two hundred to three hundred pounds privately if the wait is the problem.

Blyth sits close enough to Newcastle that both NHS and private options are realistically within reach along the A189 and A19, or on the Northumberland Line. That is worth knowing, because it means you can choose on credentials rather than proximity.

Frequently asked questions

Is expensive shampoo better than cheap shampoo?

Usually only up to a point. Very harsh cheap formulas can leave hair rough and a dry scalp uncomfortable, so there is a floor worth clearing. Above roughly fifteen pounds you are mainly paying for fragrance, texture and brand rather than better results.

Are hair growth supplements worth buying?

Only if a blood test shows you are deficient in something. Supplements correct deficiencies and do nothing beyond that. Taking iron you do not need is unwise, and high-dose biotin can interfere with laboratory blood tests, which may confuse your diagnosis.

What is the cheapest thing that actually helps my hair?

Behaviour changes, and they are free. Lower heat settings, looser styles, gentler detangling, and washing at a frequency that suits your scalp. After that, a conditioner and a heat protectant give the most visible improvement per pound spent.

Do laser caps work?

Some published studies show modest effects, but many are short and industry funded, and the devices cost between one hundred and fifty and seven hundred pounds. At that price it should never be a first purchase, and certainly not before free blood tests and a proper diagnosis.

Should I buy a derma roller for my scalp?

Be cautious. Most of the encouraging research combined microneedling with a prescription topical, so the device on its own is not what was tested. Used badly at home there is genuine infection and scarring risk. Discuss it with a clinician before buying one.

Is a silk pillowcase worth the money?

For breakage, often yes, particularly if your hair is long, fine, curly or already fragile. Less friction overnight means fewer snapped hairs. It will not change how much you shed, because shedding happens at the follicle.

Is a private trichologist consultation worth paying for?

Sometimes, mainly for a detailed assessment when the picture is confusing. Get free GP bloods first so you arrive with results. Check what qualification the practitioner holds, since the title is not legally protected in the UK, and ask whether they sell their own product range.

How long should I give a product before deciding it is not working?

Three months at minimum, because hair grows at roughly one centimetre a month and nothing shows up faster than that. Change one thing at a time, and take monthly photographs, otherwise you will never know which change did what.

Can any shampoo stop hereditary hair loss?

No. Pattern hair loss is genetic and hormonal, and the treatments with genuine evidence behind it are medicines that need a clinician. Cosmetic products keep the scalp comfortable and make the hair you have look fuller, which is a real but different job.

The short version

Spend in this order. Free GP bloods and a monthly photograph. Then the behaviour changes that cost nothing. Then, if you want them, a good conditioner and a heat protectant under fifteen pounds each. Then a shampoo that suits your scalp. Only then, and only if a blood test justified it, a specific supplement for the specific thing that was low. Devices last, if at all.

Most people do this backwards, spend two hundred pounds, feel no better, and conclude nothing works. Nothing worked because the order was wrong.

Watermans has made vegan, UK-made hair care since 2012, with over 5 million bottles sold. We are comfortable telling you that the free blood test matters more than anything on our shelf.

Read next: seven habits that protect your hair, or what causes thinning hair.