Justhair

Guide

Knowledge and answers about hair loss and healthy hair.

A man in his early forties sits at a piano in a bright living room, playing calmly and with focus.

Dutasteride for hair loss: how it works, its approval status and what the evidence shows

In Germany, dutasteride is approved only for benign enlargement of the prostate, but not for hereditary hair loss: there it is used exclusively off-label. What the active ingredient does, what the studies show and for whom a doctor might consider it.

Dr. Christian Drerup
A man in his early forties works calmly and with focus on a project in a bright woodworking shop.

Switching from finasteride to dutasteride: when a change makes sense

Dr. Christian Drerup
A man in his late thirties sits relaxed on a wooden bench on a balcony in soft morning light, a calm, thoughtful expression, casual everyday clothes.

Finasteride: side effects explained honestly

Dr. Christian Drerup
A man looks at his hairline in the bathroom mirror and runs a hand through his hair.

Haarausfall: Ursachen erkennen und richtig behandeln.

Dr. Christian Drerup

Latest articles

Ein Mann um die vierzig spricht in einer hellen Apotheke am Beratungstresen mit einer Apothekerin, die Regale im Hintergrund sind unscharf.

Minoxidil: Prescription or Pharmacy? What Is Available Without a Prescription and What Only a Doctor Can Prescribe

In Germany, topical minoxidil up to 5 % for hereditary hair loss is available without a prescription at the pharmacy. Oral minoxidil is not approved for hair loss and is available only on a doctor's prescription. What the pharmacy may dispense and how the medical route works.

Dr. Christian Drerup
Mann Anfang dreißig sitzt nach einer Radtour auf einer Parkbank und liest konzentriert etwas auf seinem Smartphone, das Fahrrad lehnt neben ihm.

Finasteride Experiences: What Studies Show About Progress, Response and Stopping

In large placebo-controlled studies of finasteride 1 mg, hair loss stopped in most of the men studied with mild to moderate hair loss, and in some of them the hair became denser. Plus timelines, side effects and stopping.

Dr. Christian Drerup
Mann Mitte dreißig sitzt an einem Küchentisch und liest konzentriert in einem aufgeschlagenen Notizbuch, helles Tageslicht.

Minoxidil or Finasteride? Effects, Side Effects and Suitability Compared

Finasteride acts on hormones and requires a prescription in Germany. Topical minoxidil works directly at the hair follicle, is available without a prescription in Germany and comes in separate products for women as well. Which option may be suitable is clarified by a medical review.

Dr. Christian Drerup
Mann Ende dreißig sitzt morgens am Küchentisch und notiert sich etwas in einem kleinen Notizbuch, eine Tasse Tee daneben, weiches Fensterlicht.

Orales Minoxidil: Nebenwirkungen in Zahlen und wie du sie richtig einordnest

Orales Minoxidil ist gegen Haarausfall nicht zugelassen und wird off-label niedrig dosiert. In der größten Sicherheitsstudie zur niedrig dosierten Anwendung war vermehrter Körperhaarwuchs die häufigste Nebenwirkung, Kreislaufbeschwerden waren deutlich seltener.

Dr. Christian Drerup
Mann Anfang 40 geht am frühen Abend mit seinem Hund durch einen ruhigen Stadtpark, lockere Alltagskleidung, entspannter Gesichtsausdruck.

Finasterid und Minoxidil kombinieren: Wirkung, Formen und für wen die Kombination sinnvoll ist

Finasterid senkt das Hormon DHT, Minoxidil verlängert die Wachstumsphase der Haare. Weil beide an unterschiedlichen Punkten ansetzen, werden sie bei erblich bedingtem Haarausfall oft kombiniert. Ob die Kombination für dich geeignet ist, klärt die ärztliche Prüfung.

Dr. Christian Drerup
Mann Ende dreißig trägt am hellen Badezimmerspiegel eine topische Lösung auf die freigescheitelte Kopfhaut auf.

Topische Haarausfall-Lösung richtig auftragen: Anleitung für Spray und Pipette

Topische Lösungen gehören auf die trockene Kopfhaut, nicht ins Haar. Auf nasser Kopfhaut verdünnt sich die Lösung und läuft ab, dann dringt weniger Wirkstoff ein. So trägst du sie mit Spray oder Pipette richtig auf.

Dr. Christian Drerup
A man in his late thirties walks relaxed down a tree-lined residential street on a bright morning, casual everyday clothes, a calm, natural expression.

Finasteride: How It Works, Benefits and Side Effects

Finasteride lowers the level of the hormone DHT, which causes the hair follicles to shrink in people with a hereditary predisposition. For men with hereditary hair loss it is approved in Germany. How it works, how well this is proven and which side effects are possible, you can read here.

Dr. Christian Drerup
A woman around forty calmly arranges fresh flowers in a vase at a bright dining table.

Spironolactone for hair loss in women: how it works, the evidence and when it may be considered

For hereditary hair loss in women, spironolactone is not approved in Germany and is used only off-label on prescription, usually together with topical minoxidil. The active ingredient is a blood-pressure-lowering medication with an antiandrogenic effect. Here is what that means for you.

Dr. Christian Drerup
A couple in their mid-thirties sits relaxed side by side on the sofa, talking calmly.

Finasteride, dutasteride and trying to conceive: what applies when your partner is pregnant?

For women who are trying to conceive or are pregnant, 5-alpha-reductase inhibitors such as finasteride and dutasteride are ruled out entirely. For the man being treated, the picture is more nuanced and depends on the product and its form. What this means for you is explained here.

Dr. Christian Drerup