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The Science of Hair Growth: Understanding the Hair Cycle

Struggling with hair loss? Get a prescription for effective hair growth medication online from an EU-licensed doctor for just €25. Receive your prescription in under 24 hours, valid at any EU pharmacy.

1 February 2026
The Science of Hair Growth: Understanding the Hair Cycle

The Science of Hair Growth: Understanding the Hair Cycle

Are you looking for an online prescription for hair growth medication in the EU? You've come to the right place. Hi-Doctor connects you with EU-licensed doctors who can assess your case and, if appropriate, issue a prescription for effective hair loss treatments. For just €25, you can get a digital prescription in under 24 hours, valid at any pharmacy in the EU. There's no risk — if the doctor determines the treatment is not right for you, your €25 is refunded.

How it works — get your hair growth medication prescription in 4 steps

  1. Fill out our quick online medical questionnaire (2–3 minutes) and pay the €25 consultation fee.
  2. A licensed EU doctor reviews your case privately. If the doctor decides the treatment is not appropriate for you, your €25 is refunded automatically — no risk.
  3. If approved, you receive a REMPE electronic prescription (PDF file) in your Hi-Doctor account and by email within 24 hours.
  4. Print the PDF or show it on your phone — present it at any pharmacy in the EU to collect your hair growth medication.

Who qualifies for hair growth medication

Our EU-licensed doctors review each case individually to determine if prescription hair growth medication is appropriate for you. They look for specific criteria, including the type and extent of your hair loss, your medical history, and any potential contraindications. Generally, these medications are prescribed for androgenetic alopecia (male or female pattern baldness). The doctor will assess factors such as:

  • Your age and medical history.
  • The pattern and progression of your hair loss.
  • Any underlying health conditions or medications you are currently taking.
  • Your goals and expectations for treatment.

It's important to be honest and thorough in your medical questionnaire to allow the doctor to make an informed decision about your eligibility.

What hair growth medication actually does (and doesn't do)

Prescription hair growth medications, such as Finasteride or Dutasteride, primarily work by targeting the hormonal causes of hair loss, specifically by inhibiting the conversion of testosterone to dihydrotestosterone (DHT). DHT is a hormone that can shrink hair follicles, leading to thinning hair and eventual hair loss in genetically predisposed individuals. By reducing DHT levels, these medications can:

  • Slow down or stop further hair loss.
  • Promote the regrowth of hair, particularly on the crown and at the hairline.
  • Increase hair thickness and density.

It's important to understand that these medications do not cure baldness and require consistent, long-term use to maintain results. They are most effective for preventing further loss and promoting regrowth in areas where follicles are still active, but miniaturised. They do not typically regrow hair in areas that have been completely bald for many years.

Side effects and when to stop

Like all medications, hair growth treatments can have side effects. While generally well-tolerated, some individuals may experience:

  • Sexual side effects: Decreased libido, erectile dysfunction, or ejaculatory dysfunction (rare).
  • Mood changes: Depression or anxiety (rare).
  • Scalp irritation: With topical solutions like Minoxidil.
  • Temporary shedding: Some users experience initial shedding as new hair growth cycles begin.

If you experience any concerning or severe side effects, you should stop the medication and consult with a doctor. Our Hi-Doctor platform provides a private, RGPD-compliant chat where you can communicate directly with your prescribing doctor for any questions or concerns during your treatment.

Why Hi-Doctor vs. walking into a clinic

Choosing Hi-Doctor for your hair growth medication prescription offers significant advantages over traditional in-person clinic visits:

  • Speed: Get your prescription in under 24 hours, compared to weeks or months for an in-person appointment.
  • Price: A flat €25 consultation fee, with a money-back guarantee, versus variable and often higher private clinic fees.
  • Privacy: Everything happens securely within your Hi-Doctor account – no waiting rooms, no awkward conversations at a reception desk.
  • Convenience: Consult from anywhere with an internet connection – no travel, no parking, no time off work.
  • Trust: Join over 50,000 satisfied patients, reflected in our 4.8 Trustpilot rating. Our EU-licensed doctors review every case individually, ensuring safe and appropriate care.

Frequently asked questions

What happens if the doctor decides I'm not a candidate for the medication?

If the doctor determines that the treatment is not appropriate for you, your €25 consultation fee is refunded automatically — you pay nothing if the treatment isn't approved.

Is the REMPE prescription valid outside Spain?

Yes, the REMPE prescription is Spain's official private electronic prescription standard. Under EU Directive 2011/24/EU, any EU pharmacy (e.g., in France, Germany, Italy, Portugal, Netherlands, Belgium, Austria, Ireland) can dispense medication from it. You receive a downloadable PDF you can print and present at the counter.

How do I actually collect the medication once I have the prescription?

Simply print the PDF prescription or show it on your phone at any EU pharmacy. The pharmacist will read the QR code/digital signature and dispense the medication to you.

Is it legal to get hair growth medication online in my EU country?

Yes, it is legal to obtain prescription medication via an EU-licensed doctor with a valid REMPE prescription, which is recognised across the EU under cross-border prescription regulations.

How long does the prescription take?

Once you complete the questionnaire, an EU-licensed doctor will review your case. If approved, you will receive your electronic prescription (PDF) within 24 hours.

Is my data private?

Absolutely. Hi-Doctor is fully RGPD-compliant. All your medical information and communications are private, secure, and auditable within your patient account.

How much does it cost?

The online consultation fee is a flat €25. This covers the doctor's review of your case and, if appropriate, the issuance of your prescription. If the doctor determines the treatment is not suitable, your €25 is fully refunded.

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