Alpecin or minoxidil: which works better against hair loss? 6 differences in a row

Are you unsure between Alpecin and minoxidil against hereditary hair loss? Short answer: minoxidil 5% has the strongest evidence. In a double-blind study with 393 men, minoxidil gave 5% significantly more hair growth after 48 weeks than a placebo^[1]. For caffeine products like Alpecin, the evidence is thinner: a 2025 systematic review found 9 small studies, 5 of which had very low-quality evidence^[2]. Alpecin is much cheaper and has few side effects. In this comparison we list the 6 most important differences, honestly and with sources, so you can choose for yourself.

In this article

• What is Alpecin and how would caffeine work?
• What are the 6 differences between Alpecin and minoxidil?
• Is Alpecin as good as minoxidil, according to a study says?
• Can you use Alpecin and minoxidil together?
• Which one is right for you?
• Frequently asked questions
• Sources

What is Alpecin and how would caffeine work?

Alpecin is a German brand from Dr. Kurt Wolff who is best known for the Caffeine Shampoo C1. According to the manufacturer, caffeine strengthens weakened hair roots and the caffeine complex reaches the hair root within 2 minutes. That is why Alpecin recommends using the shampoo daily and allowing it to work for 2 minutes^[3]. In addition to the shampoo, there is the Caffeine Liquid, a tonic that you leave on the scalp^[4].

Minoxidil works differently. It is a lotion or foam that you apply to the thinning areas twice a day and let it sit^[5]. According to Apotheek.nl, minoxidil on the skin causes less hair loss, and sometimes new hair will grow.^[6]. Minoxidil 5% has an official registration with package leaflet in the Netherlands and is only intended for adults aged 18 and over^[5].

What are the 6 differences between Alpecin and minoxidil?

Below we compare Kirkland minoxidil 5% lotion with the two best-known Alpecin products on points that you can check yourself. Alpecin prices are the recommended prices on the Dutch Alpecin website (October 2026).

The honest picture: Alpecin wins on price and convenience, minoxidil wins on evidence. With hereditary hair loss, that evidence is the most important point for most people, because you have to persevere for months before you see anything.

Most chosen

Kirkland Lotion 5% For Men

Minoxidil 5% lotion with pipette, cheap if you buy a few months in advance.

From €29.99View the lotion →

Is Alpecin as good as minoxidil, as a study says?

Alpecin likes to refer to one study: a study in India with 210 men, in which a caffeine fluid of 0.2% was "no less good" than minoxidil 5% after 6 months. The proportion of hairs in the growth phase increased by 10.6% with caffeine and 11.7% with minoxidil^[7]. That sounds convincing, but note three points:

• It was about the Liquid, not the shampoo. The liquid remains on the scalp. Rinse out a shampoo after 2 minutes.
• It was an open study. Participants and researchers knew who used what. The authors themselves write that this can lead to distortion^[7].
• The manufacturer contributed to the payment. The study was financed by Dr. Kurt Wolff, and one of the authors works for this company^[7].

The 2025 systematic review concludes that caffeine products appear safe and may help, but that better-designed studies are needed and that a good result is not guaranteed^[2]. In 2018, the British advertising watchdog ASA also banned an Alpecin advertisement with the claim that the shampoo can reduce hair loss, because according to the ASA the claim was insufficiently substantiated^[8]. Minoxidil 5%, on the other hand, was tested in double-blind studies against a placebo, in which it clearly worked better than 2% and than placebo^[1]. Do you want to know how quickly you notice something with minoxidil? Then read our timeline of minoxidil results.

Can you use Alpecin and minoxidil together?

Yes, that is in principle possible. A shampoo and a lotion that you leave on do not conflict: you wash your hair with the shampoo of your choice and then apply minoxidil to the thin areas, in the morning and in the evening^[5]. There are no studies that show that the combination works better than minoxidil alone. So see Alpecin as a pleasant shampoo, not as a replacement for your minoxidil.

Do you have a sensitive scalp? Then the combination of a daily shampoo and minoxidil can sometimes irritate too much. Then choose a minoxidil with less alcohol, and do not use minoxidil on an inflamed, irritated or painful scalp. flakes.^[5].

Sensitive scalp

Foligain Lotion 5% Sensitive Skin (3 months)

Minoxidil 5% in a variant with little alcohol, for those who easily suffer from itching or flakes.

€64,99View Foligain →

Which one is right for you?

Your choice depends on what you want to achieve and how much effort you want to put in. This table will help you get started.

Good to know before you start minoxidil starts: in weeks 2 to 6 you may temporarily lose more hair. That's part of it and usually stops within a few weeks^[5]. Stop and contact a doctor if you experience chest pain, fast or irregular heartbeat, dizziness, swollen hands or feet, or sudden weight gain^[5]. Do not use it if you are pregnant^[6]. If you stop taking minoxidil, the new hair may fall out again within 3 to 4 months^[5].

Prefer foam

Kirkland Minoxidil Foam 5% (1 month)

Minoxidil 5% as foam, useful if you find the lotion too wet or too sticky.

€34,99View the foam →

Are you unsure between the different minoxidil brands? In our comparison Kirkland or Regaine you can read why the same minoxidil 5% does not have to be expensive.

Frequently asked questions

Does Alpecin really work against hair loss?

Maybe a little, but the evidence is weak. Most studies on caffeine products are small and some do not have a control group. The British ASA found the claim that the shampoo reduces hair loss to be insufficiently substantiated in 2018.

Is Alpecin Caffeine Liquid as good as minoxidil 5%?

One open study, paid for by the manufacturer, found a comparable improvement in the proportion of growing hairs after 6 months. That is one study with limitations. Minoxidil 5% has been tested against placebo in several double-blind studies.

How long do I have to use Alpecin or minoxidil before I see anything?

According to Alpecin, failure noticeably decreases after about 3 months. With minoxidil, according to the package leaflet, you will see results after 2 to 4 months. If you do not see any new hair growth after 4 months, stop according to the package leaflet.

Can I use Alpecin shampoo if I use minoxidil?

Yes. Wash your hair with the shampoo, dry it and then apply minoxidil to the thin spots. If you experience a lot of itching or redness, choose a milder shampoo or a minoxidil with less alcohol.

Is Alpecin or minoxidil suitable for women?

The caffeine study against minoxidil was only done on men. Minoxidil 5% foam for men is not intended for women according to the package leaflet; There are separate products for women, such as 2% lotion or 5% foam for women. If in doubt, consult your doctor or pharmacist.

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 as of October 2026.

Sources

1. Olsen EA et al. (2002), A randomized clinical trial of 5% topical minoxidil versus 2% topical minoxidil and placebo in the treatment of androgenetic alopecia in men, Journal of the American Academy of Dermatology (English)
2. Szendzielorz E, Spiewak R. (2025), Caffeine as an Active Ingredient in Cosmetic Preparations Against Hair Loss: A Systematic Review of Available Clinical Evidence, Healthcare (English)
3. Alpecin, Alpecin Caffeine Shampoo C1, product information (consulted October 2026)
4. Alpecin, Product overview with recommended prices, including Caffeine Liquid (consulted October 2026)
5. Medicine Evaluation Board, Medicines Information Bank, Package leaflet Minoxidil 50 mg/g foam for cutaneous use (RVG 128704)
6. Apotheek.nl, Minoxidil on the skin
7. Dhurat R et al. (2017), An Open-Label Randomized Multicenter Study Assessing the Noninferiority of a Caffeine-Based Topical Liquid 0.2% versus Minoxidil 5% Solution in Male Androgenetic Alopecia, Skin Pharmacology and Physiology (English)
8. The Sunday Post (March 28, 2018), Alpecin caffeine shampoo advert which claims it helps reduce hair loss banned (English)