Minoxidil not working? 6 reasons why you don't see results and what to do

Is minoxidil not working for you? This is usually due to one of six things: you judge too early, you do not use it correctly every day, your hair loss has a different cause, your hair follicles do not convert minoxidil as well, you use a strength or form that does not suit you, or you expect new hair while the drug mainly inhibits further loss. Minoxidil does not work for everyone^[1]. In men, it usually takes 2 to 4 months of daily use before you see anything; If you see no effect after 4 months (men) or 6 months (women), the product information recommends stopping^[2]. In this blog you can read for each reason how to recognize it and what you can do.

Contents

• How long do you have to use minoxidil before you can say that it does not work?
• What are the 6 reasons that minoxidil does not work?
• Could it be your genes that minoxidil does not work?
• When is it time for the GP?
• What can you do if minoxidil really doesn't work?
• Frequently asked questions
• Sources

How long do you have to use minoxidil before you can say it doesn't work?

Longer than most people think. According to Apotheek.nl, minoxidil only starts to work after about 4 months^[1]. The leaflet of a 2% lotion for men even states that after 4 months at least two-thirds of users see no effect, and that after 12 months approximately one-third have some hair growth^[3]. Anyone who stops after 6 weeks has not given the drug a fair chance.

This timeline shows when you can expect what and when the official product information advises to stop:

Do you want to know what happens in your hair per month? Then also read our timeline of minoxidil results from months 1 to 6.

What are the 6 reasons that minoxidil doesn't work?

On forums like Reddit and Hairlosstalk, the same question keeps coming up: "I've been using it for months and I don't see anything." The story almost always fits one of these six reasons.

1. You judge too early

The most common reason. Hair grows slowly and minoxidil takes months to work out, as the timeline above shows. Take a photo in the same light at the start and only compare after a few months.

2. You don't use it consistently or properly

Minoxidil only works as long as you use it; Continuous use is required for lasting effect^[2]. Apply it to the scalp itself, not to your hair. Men use 5% foam 2 times a day, women 1 time a day. Using it more often or more does not give better results, according to the product information^[2]. Forgot a dose? Apply it as soon as you remember, unless the next one is almost due; never take a double dose^[3]. If you have any doubts about the technology, read on apply minoxidil in 6 steps.

Minoxidil 5% for men

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3. Your hair loss has a different cause

Minoxidil is intended for hereditary hair loss (androgenetic alopecia)^[2]. According to the product information, it is not intended for sudden or irregular hair loss, hair loss of unknown cause, hair loss after childbirth, or hair loss due to hormonal or other physical causes^[2]. Consider a thyroid problem, iron deficiency, stress or a new medication. Then minoxidil does not solve the problem and the doctor is the first step.

4. Your hair follicles convert minoxidil less well

You can read more about this in the next section: it is sometimes due to an enzyme in your hair follicle.

5. The strength or form does not suit your

5% minoxidil is more effective in men than 2%^[4]. If you use 2%, this may be a reason for a disappointing result. For women there is a 5% foam that is used once a day^[2]. Do you keep stopping because of itching or a dry scalp? Then sometimes a different form helps you to keep it up. Irritation, dry skin and a burning sensation are known side effects^[1].

For a sensitive scalp

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The version of Foligain for men with a sensitive scalp, for whom regular lotion always itches too much.

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6. You expect something different from what minoxidil does

Apotheek.nl describes the effect as follows: less hair loss and sometimes new hair grows^[1]. If your hair loss stops and your hair remains the same thickness, then it works. Completely bald spots rarely fill up again. Therefore, compare photos instead of looking at the number of hairs in the drain.

Could it be your genes that minoxidil does not work?

Yes, that is possible. Minoxidil must first be converted to its active form in the hair follicle. The enzyme sulfotransferase (SULT1A1) does this, and how much of it is present varies greatly per person^[4]. In an initial study by Goren and colleagues, a test for this enzyme in plucked hair predicted with a sensitivity of 95% and a specificity of 73% who would respond to minoxidil^[5]. In research by Olsen, 5% minoxidil helped about 40% of men for hair growth^[4].

There is also research into increasing this enzyme activity, for example with tretinoin on the scalp: in a small study, 43% of the people who were initially predicted as non-responders subsequently responded^[4]. Tretinoin is a prescription drug that can irritate the skin. Do not combine it on your own, but discuss it with your doctor or dermatologist. The enzyme test itself is not yet widely available and the studies are small.

When is it time to see a doctor?

Go to the doctor if your hair loss starts suddenly, if you develop round bald spots, if your scalp is red, inflamed or painful, or if you do not know where the loss comes from. According to the product information, minoxidil is not intended in those situations^[2]. Also stop immediately and contact a doctor if you experience chest pain, palpitations, dizziness, sudden weight gain or swollen hands or feet^[2].

Do not use minoxidil if you are pregnant or breastfeeding, and not under the age of 18^[2]. If you have heart disease, cardiac arrhythmia or high blood pressure, minoxidil on the scalp is not suitable according to the product information^[2]. Always read the package leaflet.

What can you do if minoxidil really does not work?

Have you used minoxidil daily and correctly for the full period, is the cause hereditary hair loss and you still see nothing? Then go through these steps:

• Check the basics: the right strength, the right dose and every day on a dry scalp.
• Woman? See whether 5% foam once a day suits you better than your current 2% product.
• Have the cause checked: if in doubt, your GP can do blood tests, for example for iron or the thyroid gland.
• Discuss other options: a GP or dermatologist can you are looking at prescription treatments.

For women, once a day

Regaine Foam 5% For Women

5% foam that you apply to the scalp once a day; 2 bottles are good for about 4 months.

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Frequently asked questions

How do I know if minoxidil works for me?

Compare photos of the same spot, in the same light, before starting and after a few months. Less failure and a constant density are also a result. In men, it usually takes 2 to 4 months before you see anything.

Should I use more minoxidil if it doesn't work?

No. Applying more or more often than stated in the package leaflet does not give better results, according to the product information^[2]. Stick to the recommended dose.

Does minoxidil work for a bald spot?

Minoxidil is intended for hereditary hair loss that occurs gradually. If you suddenly develop round bald spots, this may have another cause. Then go to your doctor first.

Is it normal for me to lose more hair in the beginning?

Many users report temporarily more outages in the first weeks. Read more about this in our blog about minoxidil shedding. If it lasts a long time or scares you, consult your doctor or pharmacist.

What happens if I stop because it is not working?

If minoxidil did have an effect, the new hair growth will disappear within 3 to 4 months after stopping^[3]. If you had no effect, then there will probably be little change compared to your situation without minoxidil.

This article is general information and does not replace medical advice. Always read the package leaflet and, if in doubt, consult your doctor or pharmacist. Prices are from October 2026.

Sources

1. Apotheek.nl (KNMP), Minoxidil on the skin
2. Medicine Evaluation Board, Medicines Information Bank, Summary of product characteristics Minoxidil Bipharma 50 mg/g foam
3. Medicine Evaluation Board, Package leaflet Minoxidil lotion 2 g/100 ml
4. Pietrauszka K, Bergler-Czop B., Sulfotransferase SULT1A1 activity in hair follicle, a prognostic marker of response to the minoxidil treatment in patients with androgenetic alopecia: a review, Advances in Dermatology and Allergology, 2022 (English)
5. Goren A et al., Novel enzymatic assay predicts minoxidil response in the treatment of androgenetic alopecia, Dermatologic Therapy, 2014 (English)