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Hair growth6 minute read

DHT and Hair Loss: Understanding the Connection and Treatment

Written by Hi Doctor editorial teamPublished 1 February 2026

Struggling with hair loss? Understand how DHT causes male and female pattern baldness and discover effective treatments like finasteride and dutasteride.

DHT and Hair Loss: Understanding the Connection and Treatment —
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An online consultation lets an EU-licensed doctor review your case and, if appropriate, issue an electronic prescription; each pharmacy decides whether it can dispense it.

Doctor reply in under 2 hours

Average doctor reply under 2 hours; at night and on public holidays it can take longer, always within 24 hours. A prescription only if appropriate.

EU-licensed doctors

Every case is reviewed by an EU-licensed doctor.

Electronic prescription

Each pharmacy decides whether it can dispense an approved prescription; some do not accept PDF prescriptions.

DHT and Hair Loss: Understanding the Connection and Treatment

Experiencing hair loss? You're likely searching for effective solutions and wondering how to get the right treatment. Dihydrotestosterone (DHT) is a key hormone in male and female pattern baldness. Understanding its role is crucial for finding the right medication.

At Hi-Doctor, you can get an online consultation with an EU-licensed doctor to discuss hair loss treatments like finasteride or dutasteride. The consultation costs just €45 every 90 days (cancel anytime) or €35 one-off, and if approved, you receive a downloadable prescription in under 24 hours. This prescription is valid at any pharmacy across the EU.

How it works: get your hair loss medication prescription in 4 steps

  1. Fill out our quick online medical questionnaire (2–3 minutes) and securely pay the consultation fee of €45 every 90 days or €35 one-off.
  2. An EU-licensed doctor reviews your case individually and in private. If the doctor determines the treatment is NOT appropriate for you, your fee is refunded automatically — you pay nothing. There's no risk.
  3. If approved, you receive a valid electronic prescription (a downloadable PDF file) in your Hi-Doctor account and by email within 24 hours.
  4. Simply print the PDF or show it on your phone and present it at any pharmacy in the EU (Spain, Portugal, Italy, France, Germany, Netherlands, Belgium, Austria, Ireland, etc.) to collect your medication.

Who qualifies for finasteride or dutasteride

Our EU-licensed doctors assess each case to ensure finasteride or dutasteride is safe and appropriate for you. Generally, doctors look for:

Don't see your condition on Hi-Doctor yet?

Hi-Doctor is continuously onboarding EU-licensed specialists across new conditions. Register your interest and we'll notify you the moment a doctor is available for your case. In the meantime, see how the service works: online consultation for €45 every 90 days or €35 one-off, reply within 24 h, full refund if the doctor decides the treatment isn't appropriate.

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  • Adult patients experiencing androgenetic alopecia (male or female pattern baldness).
  • No known allergies to finasteride, dutasteride, or similar medications.
  • No severe liver conditions.
  • Women who are pregnant or may become pregnant are typically not prescribed these medications due to potential risks.
  • A detailed medical history is required to rule out contraindications and ensure the medication's safety.

The doctor reviews all your information from the online questionnaire to make an informed decision about your eligibility.

What finasteride and dutasteride actually do (and don't do)

Finasteride and dutasteride are medications that target DHT to combat hair loss. They work by inhibiting the enzyme 5-alpha reductase, which converts testosterone into DHT. Since DHT is responsible for shrinking hair follicles, reducing its levels can:

  • Slow down hair loss: By protecting follicles from DHT's effects.
  • Promote regrowth: In some cases, miniaturized follicles can recover and start producing thicker, healthier hair.
  • Improve hair density: Leading to a fuller appearance.

Finasteride primarily inhibits type 2 5-alpha reductase, while dutasteride inhibits both type 1 and type 2, making it potentially more potent. Results are not immediate; expect to see initial improvements in 3-6 months, with full effects typically visible after 12 months of consistent use. These medications do not cure baldness and require continuous use to maintain benefits. They do not work for all types of hair loss, such as alopecia areata.

Side effects and when to stop

Like all medications, finasteride and dutasteride can have side effects. Most are mild and temporary, but it's important to be aware of them:

  • Common side effects: Decreased libido, erectile dysfunction, ejaculation disorders, breast tenderness or enlargement. These are generally uncommon and often resolve with continued use or discontinuation.
  • Less common but serious side effects: Allergic reactions (rash, itching, swelling), depression, or changes in mood.
  • When to stop: If you experience severe or persistent side effects, or if you notice any concerning changes, you should stop the medication and consult your doctor immediately. Our Hi-Doctor platform offers a private, RGPD-compliant chat with your doctor for any concerns.

Your EU-licensed doctor will discuss potential side effects during your online consultation and determine if these treatments are right for you.

Why Hi-Doctor vs. walking into a clinic

Choosing Hi-Doctor for your hair loss treatment offers significant advantages over traditional in-person clinic visits:

  • Speed: Get your prescription in under 24 hours vs. waiting weeks for an appointment at a clinic.
  • Price: An online consultation fee of €45 every 90 days or €35 one-off with a money-back guarantee vs. variable and often higher private clinic fees.
  • Privacy: Everything happens securely within your Hi-Doctor account, maintaining your discretion. No reception desks or crowded waiting rooms.
  • Convenience: Complete your consultation from anywhere using your phone or computer. No travel, parking, or time off work required.
  • Trust: Join over 50,000 satisfied patients, reflected in our 4.8 Trustpilot rating. All cases are reviewed by EU-licensed doctors.

Hi-Doctor streamlines access to necessary care, bringing expert medical advice directly to you.

Your interest guides which specialists we add next.

If your treatment isn't yet among Hi-Doctor's covered specialties, register at hi-doctor.ai so a doctor can notify you the moment we can handle your case. Our EU-licensed doctors issue electronic prescriptions as a PDF valid at any EU pharmacy, and if the doctor decides the treatment isn't appropriate, the consultation fee is refunded automatically.

Register my interest · €45 every 90 days or €35 one-off

COMMON QUESTIONS

Frequently asked questions

If the EU-licensed doctor determines that finasteride or dutasteride treatment is not appropriate for you, your consultation fee is refunded automatically. You pay nothing if the treatment isn't approved.

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Written by the Hi Doctor editorial team. General information, not individually reviewed by a doctor.

If the doctor does not approve treatment, we refund the full amount. Every consultation is fully refundable. How refunds work