Written by Daniel Higham
Superintendent Pharmacist
Daniel leads Hightown Pharmacy and its online pharmacy service, combining community-pharmacy experience with a focus on clear, responsible medicine information.
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Please fill in the questionnaire below. Any information provided will be kept confidential and will only be seen by a prescriber. These questions are designed to give our prescriber enough information to make a decision on whether the treatment is suitable, please fill them in truthfully.
Pattern hair loss, or androgenetic alopecia, is the most common long-term type of hair loss. Topical minoxidil is available without a prescription. Finasteride, dutasteride and oral minoxidil are prescription-only treatments for men and are supplied after a short online assessment reviewed by a UK prescriber.
Prescription assessment
Complete a short online questionnaire about your hair loss and medical history. A UK prescriber reviews every answer.
Hair loss, or alopecia, affects both men and women. It can happen gradually or suddenly, and it may be temporary or permanent depending on the cause. Losing 50 to 100 hairs a day is normal; a widening parting, receding hairline or patches of loss are worth looking into.[1]
Pattern hair loss is the most common long-term type. It develops gradually as genetically susceptible follicles produce finer, shorter hairs. The treatments on this page are for pattern hair loss; sudden or patchy loss usually has a different cause and needs different treatment.[2][3]
Compare how each treatment is used, what it does and how long it can take before you notice a change.
| Treatment | How you use it | UK licence | What it does | When to look for change |
|---|---|---|---|---|
| Topical minoxidilRegaine 5% solution and foamNo prescription | Apply it to a dry scalp, not your hair. Men's solution and foam are used twice daily; women's foam is used once daily. | Separate licensed products for men and women. Follow the age range and directions for the product you buy. | Acts on the follicle and hair-growth cycle. The precise way minoxidil stimulates growth is not fully understood. | Men's foam from 8 weeks, men's solution from about 2 months and women's foam from 12–24 weeks.[6][7][8] |
| Finasteride 1mgAlso sold as PropeciaPrescription | Take one tablet daily and continue using it to maintain the benefit. | Licensed for male pattern hair loss. Hightown supplies it to men only. | Lowers DHT, the hormone that gradually shrinks susceptible follicles in male pattern hair loss. | Usually 3–6 months before change is visible; use 12 months for a fuller comparison.[4] |
| Dutasteride 0.5mgAlso sold as AvodartPrescriptionOff-label | Take one capsule daily. | Licensed for an enlarged prostate, not hair loss. It can be prescribed off-label to men with pattern hair loss. | Blocks both type 1 and type 2 5-alpha reductase, reducing DHT more strongly than finasteride. | Trials measured changes from 24 weeks; assess progress over 6–12 months.[9] |
| Oral minoxidil 2.5mgHightown supplies 2.5mg tablets onlyPrescriptionOff-label | Take the dose shown on your dispensing label. Do not change or split it unless your prescriber tells you to. | Licensed as a blood-pressure medicine, not hair loss. Hightown currently supplies it for hair loss to men only. | Delivers minoxidil throughout the body. Increased hair growth elsewhere on the body is its most common side effect.[10] | Initial change may appear from around 3–6 months; assess the fuller response over 6–12 months.[12] |
Pattern hair loss is the most common long-term cause, but it is not the only one. Finding the cause matters because the other types are treated differently.
Your hair loss is sudden, patchy or painful; your scalp is inflamed or scarred; it started after childbirth or illness; or you do not know what is causing it. The NHS recommends finding the cause before using a commercial hair loss service.[1]
Pattern hair loss often has a recognisable shape. Sudden, patchy or painful hair loss needs someone to look at your scalp.
Male pattern hair loss usually starts at the temples, the crown or both. It develops slowly, and the hair at the back and sides is usually less affected. If this looks like your hair loss and close relatives have the same pattern, that gives you a useful clue.[2]
Female pattern hair loss looks different. The front hairline often stays where it is while the parting gradually becomes wider.[3]
See your GP if the loss came on quickly, appears in round patches, or your scalp is sore, red, scaly or scarred. You should also see them if you cannot work out what is happening. A GP can examine your hair and scalp, ask about your health and family history, and arrange further checks when needed.[1][16]
The treatments on this page are intended for pattern hair loss. If something else is causing your hair loss, treating that cause comes first.
Our online questionnaire is not a scalp examination. It asks about your pattern of loss, how it started, your medical history, your blood pressure and the medicines you take. A prescriber uses your answers to decide whether a prescription treatment is safe and suitable for you. If your answers point to a different type of hair loss, they will ask you to see your GP instead.
Pattern hair loss treatments are not normally available on the NHS, so you will usually need to pay for them privately. Wigs and hairpieces can be available through the NHS in some circumstances.[1][16]
Hair loss caused by another health problem is different. If your thinning is linked to low iron, a thyroid problem, an illness or a medicine you take, your GP can investigate the cause and explain what treatment is available.[1]
When you buy treatment privately, compare the ongoing cost rather than only the first pack. Finasteride and minoxidil only maintain their effect while you continue using them.[1][4]
Finasteride can cause sexual side effects including reduced sex drive, erectile dysfunction and ejaculation changes, and these have been reported to persist in some men after stopping. Mood changes, including depression and suicidal thoughts, have also been reported. Dutasteride now carries precautionary advice about mood changes associated with the same class of medicine.[13]
Stop finasteride 1mg and contact a healthcare professional if you develop depression or suicidal thoughts. If you take either medicine and notice sexual side effects, speak to your prescriber, pharmacist or GP.
If you are in immediate danger call 999. For urgent medical help call 111. For emotional support call Samaritans on 116 123. Suspected side effects can be reported through the MHRA Yellow Card scheme.
The aim is usually to slow or stop further loss first. Some people also see thicker hair or regrowth, but that takes longer and the response differs from person to person. The comparison above gives you a realistic time to look for change with each treatment.
Take progress photographs in consistent lighting and from the same angles. These treatments manage an ongoing process rather than curing it, so continued use is normally needed to maintain the benefit. If you stop, hair loss resumes and maintained or regrown hair is generally lost over the following months.
Hair care cannot change inherited pattern hair loss. It can help you avoid breakage, scalp irritation and other preventable damage while your treatment has time to work.[2][17]
Start as soon as you are confident that pattern hair loss is the cause. Treatment can slow further loss and may help some regrowth, but it cannot restore every follicle that has stopped producing visible hair.[2]
We do not offer these services. Here is what the current evidence can tell you before you spend money on them.
A surgeon moves follicles from the back or sides of your scalp into thinning areas. It can add hair where follicles no longer produce visible hair, but it is still surgery and the result depends on the donor hair and the surgeon. A transplant does not stop pattern hair loss in the hair around it. Hair transplant surgery for pattern hair loss is not normally available on the NHS.[1][2]
A clinic takes a small amount of your blood, separates the platelet-rich plasma and injects it into your scalp. A 2024 systematic review found some promising results, but the studies were small and varied considerably in how PRP was prepared and used. The authors judged the evidence too limited for firm conclusions, so ask what evidence and treatment schedule a clinic uses before paying for repeat sessions.[14]
A 2025 review of randomised trials found that microneedling with topical minoxidil improved hair count and diameter more than minoxidil alone. The devices, needle depths and schedules varied considerably, so there is no single agreed home-use method. Do not use a device on broken, inflamed or infected skin. Follow the minoxidil leaflet and ask a pharmacist or prescriber before combining them.[7][15]
A supplement can help when a confirmed deficiency is contributing to your shedding. It does not replace a treatment for pattern hair loss. Caffeine shampoos are cosmetic products rather than licensed hair loss medicines. If you are worried about your diet or a deficiency, ask your GP before spending money on tests or supplements.[1][16]
A wig or hairpiece changes how your hair looks straight away and does not involve medicine or surgery. Synthetic and real-hair options need different care, and some wigs are available through the NHS if you meet the criteria.[1][2]
Ask the clinic what evidence supports its claims, who will provide the treatment, what the full course will cost and who is responsible if something goes wrong. Get those answers in writing before you commit.
It depends on the treatment. Finasteride usually needs 3–6 months. Dutasteride trials have measured changes from 24 weeks. Oral minoxidil may show initial change from around 3–6 months. Regaine for Men foam may show change from 8 weeks, the solution from about 2 months, and Regaine for Women foam usually needs 12–24 weeks. Give any treatment enough time and use progress photographs rather than checking your hair every day.[4][6][7][8][9][12]
Not at present. We are holding off on prescription hair loss treatment for women until the separate clinical pathway has final sign-off. Finasteride and dutasteride are not licensed for female pattern hair loss and carry pregnancy risks. Regaine for Women 5% foam is available without a prescription.
Minoxidil and a DHT blocker work in different ways, so using minoxidil with either finasteride or dutasteride can tackle hair loss from two directions. Never take finasteride and dutasteride together. Combining oral and topical minoxidil has no proven extra benefit; read our guide to using oral and topical minoxidil together.
Dutasteride is licensed in the UK for an enlarged prostate, not hair loss. UK prescribers can use a licensed medicine outside its licence when they decide it is clinically appropriate. Your consultation explains this before you choose treatment.[5]
Not normally for topical Regaine, finasteride or dutasteride. Oral minoxidil was developed as a blood-pressure medicine, so the consultation checks your cardiovascular history, blood pressure and current medicines first. The prescriber may ask for more information or further checks when needed.[11][12]
A temporary increase in shedding can happen 2–6 weeks after starting topical minoxidil as older resting hairs make way for new growth. It usually settles within a couple of weeks and does not normally mean the treatment has made your hair loss worse. Stop using it and speak to your doctor if the extra shedding continues for longer than two weeks.[6][7]
Not normally. Pattern hair loss treatments are not usually available on the NHS, so you will normally need to pay privately. If something else is causing your hair loss, such as low iron or a thyroid problem, your GP can investigate and treat that cause. Wigs can also be available on the NHS in some circumstances.[1][16]
Pattern hair loss is very common in men and becomes more common with age. Family history is the strongest clue, so look at the men on both sides of your family and roughly when their hair changed. It is not a perfect prediction, but hair loss that starts earlier has more time to progress.[2]
DHT is dihydrotestosterone, a hormone your body makes from testosterone using an enzyme called 5-alpha reductase. In men with pattern hair loss, follicles at the temples and crown are genetically sensitive to it. Over time, those follicles produce shorter, finer hairs. Finasteride and dutasteride reduce DHT. Minoxidil works on the hair growth cycle instead, which is why a prescriber may approve the two types of treatment together.[4][5]
It varies. Some men notice a change in their late teens or early twenties, while others keep a full head of hair for much longer. The pattern and speed of change matter more than a particular birthday. Treatment generally has more existing hair to protect when it is started earlier.[2]
No. Finasteride blocks the conversion of testosterone into DHT, so DHT falls while testosterone itself does not drop. Blood testosterone can rise slightly. Some men report reduced sex drive or erection problems, which are recognised side effects. Speak to your prescriber, pharmacist or GP if you notice them.[4][13]
Yes. Both medicines lower your PSA reading. Tell any doctor arranging a PSA test that you take finasteride or dutasteride, and how long you have taken it, so they can interpret the result properly. A confirmed rise from your lowest PSA level while taking either medicine should be investigated.[4][5]
It can be. A serious illness, an operation, a bereavement or severe stress can trigger temporary shedding, often a few months after the event. It usually causes thinning all over rather than a receding hairline. If your hair started coming out quickly after something significant happened, see your GP rather than assuming it is pattern hair loss.[1]
They can help when a deficiency is contributing to your hair loss. Low iron, for example, can cause shedding. There is no good reason to use a general hair supplement as a replacement for a proven pattern hair loss treatment when you are not deficient. If you think something is missing from your diet, ask your GP whether you need a blood test instead of guessing.[1][16]
Superintendent Pharmacist
Daniel leads Hightown Pharmacy and its online pharmacy service, combining community-pharmacy experience with a focus on clear, responsible medicine information.
Prescribing Pharmacist
Farzin brings experience from community pharmacy and GP practices, supported by his independent prescribing qualification.