Minoxidil: the miracle cure for hair loss?
Baldness is undoubtedly one of the most common concerns, particularly among men. In fact, the most common form of alopecia, androgenic alopecia, affects up to 80 % of the male population at some point in their lives. Faced with this problem of hair loss, the search for solutions has always been there! From home treatments to the most advanced drugs and treatments, such as hair transplants. So often the question is how to slow down the inevitable when you don't want a hair transplant? That's where one of the most famous pharmacological treatments in the fight against hair loss in men and women comes in: Minoxidil.
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What is Minoxidil?
Originally developed as a medicine for severe high blood pressure in the 1970s, it has since become one of the most widely used treatments for hair loss. Available under a range of brand names, it can be applied directly to the scalp in the form of a spray or topical foam, or taken in tablet form. Minoxidil boosts hair growth! Although it can be incorporated into everyday life without too much effort, it is advisable to find out all you can about it. Quite simply because Minoxidil also has possible negative aspects.
Lotion, foam or tablet: which form of minoxidil should you choose in 2026?
At the pharmacy, the minoxidil shelf looks like the yoghurt aisle: 2%, 5%, lotion, foam… and social media even promotes tablets. Here is what is authorised in France.
2% lotion, 5% lotion or foam
The 2% lotion is indicated for adults, men or women, with moderate hair loss of hormonal and hereditary origin (ALOPEXY 2% leaflet). The 5% products we reviewed, both lotions (ALOPEXY 50 mg/ml, Minoxidil Bailleul 5%) and foam (ALOSTIL 5%), are reserved for adult men, because of the risk of unwanted hair growth in women (ALOPEXY 50 mg/ml SmPC). All are sold without a prescription, are not reimbursed and are not recommended for under-18s.
Lotion or foam: propylene glycol
The lotions we reviewed contain propylene glycol, a solvent which, together with minoxidil itself, is one of the main causes of contact eczema (StatPearls). Hence the development of a propylene glycol-free foam (2019 review), such as ALOSTIL 5%. According to the American Academy of Dermatology, the foam “seems to reduce” the risk of scalp irritation (AAD).
Avoid any contact between treated areas and a baby: infants have developed excessive hair growth after such contact (SmPC). On the beard, use is off-label according to the ANSM, the French medicines agency (report, 2025); a beard transplant, on the other hand, uses your own hair.
Minoxidil tablets: off-label and prescription only
In France, the tablet (LONOTEN) is only authorised for severe high blood pressure that has not responded to other treatments, and only on prescription (French public medicines database). For hair loss, a doctor may prescribe it at a low dose, but off-label, with a check-up and follow-up as recommended by 43 dermatologists from 12 countries (2025).
- Tolerability (Vañó-Galván et al., JAAD, 2021): retrospective study of 1,404 patients. Excessive hair growth 15.1%, light-headedness 1.7%, fluid retention 1.3%, tachycardia 0.9% (rates calculated on 2,469 cases, as the dose changed in 1,065 patients); 1.7% stopped because of a side effect, no life-threatening effects. Limitation: no control group (abstract).
- Effectiveness (Penha et al., JAMA Dermatology, 2024): double-blind randomised trial in Brazil, 90 men, 5 mg tablet a day versus 5% lotion twice a day, 24 weeks. The tablet did no better, except at the crown on photographs; excessive hair growth in 49% of patients on the tablet. Limitations: 68 participants completed the trial, short duration (abstract).
As for the ANSM, the only mention we found: in November 2025, “the emerging use of oral minoxidil in androgenetic alopecia”. The LONOTEN SmPC, written for high blood pressure, lists serious heart effects such as pericarditis. The doses quoted are those used in the studies, not recommendations.
Is Minoxidil one of the leading treatments for hair loss?
Minoxidil is considered to be one of the most effective hair loss remedies and is often referred to as the 'gold standard'. Numerous clinical studies have been conducted to determine whether Minoxidil helps to treat hereditary hair loss (androgenetic alopecia) and improve hair growth. The results of these studies led to the following conclusion: Minoxidil promotes blood circulation to the hair roots and may lead to improved hair growth. It should be noted, however, that the effectiveness of this product in promoting hair growth varies considerably from patient to patient, and that it may not be effective in all forms of hair loss.
How does Minoxidil combat hair loss?
This active substance is applied to the scalp in the form of a lotion or mousse. In some people, this product improves blood flow to the hair roots, leading to more abundant regrowth. It is important to note, however, that Minoxidil does not have the same effect on everyone, and its effectiveness diminishes with prolonged use.
The mechanism of action of Minoxidil against hair loss has not yet been clearly elucidated by science. There are a few theories about its mode of action. One of them is that Minoxidil improves blood flow to the scalp, thereby promoting the supply of nutrients to the hair roots. Another hypothesis is that Minoxidil, as an alopecia solution, increases a certain enzyme in the hair follicle, thereby prolonging the hair growth phase. It could also increase the size of hair follicles, previously reduced by hormones that cause hair loss. (dihydrotestosterone).
Minoxidil can effectively slow the progression of hair loss and stimulate hair regrowth. However, in various studies, only a small percentage of people treated with Minoxidil alone obtained cosmetically satisfactory results. Finally, if treatment is interrupted, hair loss resumes. In addition, there are currently no sufficient data on the long-term use of Minoxidil. It should therefore be used with caution in the treatment of hair loss.
When does Minoxidil start to work?
The effect of Minoxidil is felt more or less quickly, depending on individual circumstances. As a general rule, an improvement in hair growth is observed within two to four months of starting treatment. However, for optimum results, regular use for at least six to twelve months is necessary. In many cases, it has taken much longer to see the effects of Minoxidil.
Can Minoxidil also improve beard growth?
In recent years, beards have become a male charm (see our article on beards). beards & seduction). So they also use Minoxidil to grow a beard. It works in the same way as it does to treat hair loss, by boosting blood circulation in the facial skin and thus helping to stimulate the hair roots. Note, however, that you need to have active pre-existing hair roots for this to work (unfortunately, insufficient hair or basic beardlessness won't work with Minoxidil). It's also important to know that, here again, there are no scientific results from long-term studies on real patients. The empirical values are based on laboratory test results.
With beard transplantPlastic and aesthetic surgery offers a truly long-lasting and more certain alternative to the use of creams, drugs or other topical treatments. The procedure involves removing hair from a so-called eternal area (hair unaffected by falling out) of the head and transplanting it to the desired location in the beard area.
Transplanted grafts are more likely to grow successfully and last forever than a simple stimulant such as Minoxidil. However, beard transplants must be carefully considered and should only be carried out in a specialist clinic in hair transplants.
Minoxidil: how long before hair grows back? Month-by-month results
Staring in the mirror… and losing more hair than before? Don't panic: the leaflet warned you.
| Period | What can happen |
|---|---|
| Weeks 2 to 6 | Temporary increase in shedding |
| Months 2 to 4 | First results possible |
| Month 4 | First check: if there is no regrowth, the foam's leaflet says to stop |
| Months 6 to 12 | Time sometimes needed to judge the effect |
| After 1 year | Plateau: maximum regrowth at around 1 year in a 5-year follow-up |
| If you stop | Back to where you started within 3 to 4 months |
Sources: SmPC, ALOSTIL leaflet, AAD, 2019 review
Why does minoxidil make hair fall out at first?
It moves hairs from the resting phase into the growth phase: old hairs fall out to make way for new ones, then the shedding stops within a few weeks (ALOSTIL leaflet). This has nothing to do with shock loss, the temporary loss of transplanted hair between the 1st and 3rd month.
Minoxidil before and after: how to judge your results
If it works for you, it can take 6 to 12 months to see the effect of minoxidil, and complete regrowth is unlikely (AAD). Rather than relying on the mirror, compare photos taken every three months: same place, same light, dry hair.
What if you stop?
When you stop, you return to where you started within 3 to 4 months (SmPC). Hence the appeal, for some, of a DHI or Sapphire FUE transplant, whose grafts come from an area usually spared by baldness; non-transplanted hair, however, may still need treatment (to be discussed with the medical team).
Some Klineva hair transplant results
Free diagnosis from your photos.
Our techniques: Sapphire FUE · DHI method · No-shave · Beard transplant · Women
What side effects may occur during treatment with Minoxidil?
Minoxidil is described as generally well tolerated. However, adverse effects are likely to occur with prolonged use, including:
- Skin irritation: Minoxidil has the potential to cause irritation, itching, redness and dryness in treated areas of the skin.
- Hair in unwanted areas: hair growth in unwanted areas is possible. Especially when used orally.
- Headaches: In some cases, the use of Minoxidil has led to an increase in headaches.
- Palpitations: may cause an increase in heart rate.
- Drop in libido: not listed in the French leaflets; erectile dysfunction is “to be monitored” according to the ANSM (2025)
- Greater or lesser weight gain
- Edema of the upper and lower limbs
- Chest pain
- Dizziness, cold sweat and nausea
We would remind you that these are not systematic side effects. It all depends on how sensitive you are to the product. Most people tolerate the treatment well. However, if you experience these symptoms, it's essential to consult a doctor and find out what's going on! Consulting a specialist before starting treatment with Minoxidil is the best option.
2026 update: lotion and tablet are not the same. The leaflet for ALOSTIL 5% foam lists sudden weight gain (common), swelling of the hands or feet (uncommon), chest pain and a racing heart (rare) among the signs that mean you should stop and call a doctor. With the tablet, fluid retention, oedema and tachycardia are common to very common (LONOTEN SmPC).
Minoxidil is extremely dangerous for pets!
Veterinary source (2026). The ASPCA (United States) reports cats being poisoned simply by lying on a pillow with minoxidil residue on it and then grooming themselves; after ingestion, signs can appear quickly or up to 12 hours later; the American Academy of Dermatology (AAD) says an animal can become ill within 30 minutes, most between 1 and 67 hours after licking or chewing a product containing it. In France, call your vet or the CNITV (04 78 87 10 40, 8.30 am to midnight, 7 days a week).
Minoxidil and its alternatives
As Minoxidil has to be applied over a long period of time, many people are looking for a permanent and simpler solution to the problem of hair loss. The only known solution to date is a Hair Transplant FAQ. Hair transplants are always carried out using the patient's own hair. And this hair, which is less sensitive to dihydrotestosterone, does not fall out once it has been implanted, guaranteeing beautiful, natural results, provided that the transplant has been carried out by good experts. There are many hair transplant clinics in France and also in Turkey, where prices are more affordable. To guarantee a good experience, the Klineva Turkish hair clinic offers each patient individual, personalised support before, during and after the operation, as well as an 'à la carte' trip around Istanbul.
Minoxidil and libido: what do the studies say?
“Minoxidil libido”: the question comes up often, and it sometimes mixes up two different drugs.
Minoxidil and finasteride: two different mechanisms
Minoxidil is a vasodilator: it opens potassium channels (StatPearls). Finasteride acts on hormones: it prevents testosterone from being converted into DHT. For finasteride 1 mg, the European Medicines Agency lists reduced sexual desire, erection difficulties and ejaculation disorders (EMA, 2025).
What the leaflets and the ANSM say
Neither the SmPC for ALOPEXY 50 mg/ml lotion, nor the leaflet for ALOSTIL 5% foam, nor the SmPC for LONOTEN tablets mentions reduced libido or erectile dysfunction. In November 2025, however, the ANSM reviewed a pharmacovigilance survey on minoxidil applied to the skin, at 2% or 5% (reports up to the end of 2024: 278 serious cases): erectile dysfunction is described there as an “effect to be monitored” (report). So it is a signal to watch, not a proven effect.
In short: unlike finasteride, no link between minoxidil and reduced libido has been established. If you notice a change, talk to your doctor: there may be other causes.
Should Minoxidil be used before or after a hair transplant?
Using Minoxidil before or after a hair transplant is not a necessity but a possibility. For example, after a hair transplant, Minoxidil can be useful because it promotes blood circulation in the scalp by dilating the blood vessels. The improved oxygen supply to the skin allows new blood vessels to form more quickly and hair follicles to anchor better in their new environment.
A number of factors determine whether Minoxidil as a medicine or hair transplantation as a cosmetic operation is the best way to combat hair loss. In addition to the individual causes of hair loss, the age of the patient and the desired effect, financial possibilities are also a factor. Minoxidil is a non-invasive treatment that needs to be used regularly to maintain its effect, and therefore entails ongoing costs. When treating baldness with Minoxidil, it is important to start the treatment early enough. Hair roots that are already inactive cannot generally be reactivated.
If hair loss is already very advanced, the effectiveness of this medicine is significantly reduced. Nor can the product deliver the expected results in such cases. The manufacturer recommends that Minoxidil should only be used in the early stages of hair loss to moderate baldness.
In brief: what to remember about minoxidil
✅ Forms: 2% lotion for women and men; 5% lotion or foam reserved for men in all the products we reviewed; no prescription needed.
✅ Tablet: authorised in France for severe high blood pressure; for hair loss, off-label and on prescription only.
✅ Tolerability: the foam, which contains no propylene glycol, seems less irritating than the lotion.
✅ Timing: temporary shedding at first, first results possible at around 2 to 4 months (but not for everyone), back to where you started 3 to 4 months after stopping.
✅ Libido: not mentioned in minoxidil leaflets; the ANSM is monitoring erectile dysfunction.
✅ Pets: a few drops can make a cat seriously ill.
Similar questions about minoxidil
Does minoxidil work for everyone?
Minoxidil is effective for some people, but not for everyone. Results vary according to various factors.
Does minoxidil have any serious side effects?
Although rare, minoxidil has side effects that can be serious. These include heart palpitations and severe irritation of the scalp. As for libido, no link has been established to date; in 2025, however, the ANSM listed erectile dysfunction among the effects “to be monitored”. It is important to keep a close eye on adverse reactions and to consult a doctor if necessary.
Can I stop using minoxidil once my hair has grown back?
It is generally recommended to continue using minoxidil regularly to maintain results. Stopping treatment abruptly often leads to further hair loss. A longer-term solution is a hair transplant.
How long does it take to see results with minoxidil?
Results of minoxidil treatment vary, but most users start to notice an improvement after 4 months of regular use.
Are minoxidil tablets authorised in France for hair loss?
No. The tablet (LONOTEN) is only authorised for severe high blood pressure, on prescription. A doctor may prescribe it at a low dose for hair loss, off-label and with monitoring: never without medical advice.
Minoxidil 2% or 5%: which one should you choose?
In men, 5% produced 45% more regrowth than 2% after 48 weeks in a trial of 393 men, with more itching and local irritation (Olsen et al., 2002). For women, only the 2% is indicated among the products we reviewed, the 5% products being reserved for men. Ask your pharmacist or doctor for advice.
Is minoxidil dangerous for cats?
Yes, very. According to the American Academy of Dermatology, a few drops can mean a cat needs life-saving veterinary care, and 97.8% of exposed cats and dogs were hospitalised in the studies. Keep the product out of reach and, if in any doubt, call your vet.
Article updated on 30 September 2026.