Our Methodology: How We Evaluate Clinics

How The Hair Transplant Observatory scores and ranks hair transplant clinics: the score out of 100, the six evaluation criteria, the categories, price estimates, and what we can and cannot verify.

By J.M. Leclerc, Updated 20 July 2026

This page explains how The Hair Transplant Observatory selects and ranks hair transplant clinics. Our goal is transparency: to state clearly what we measure, how we measure it, and above all what we cannot verify.

How Clinics Are Selected

We analyze clinics representative of the French market, along with major international players frequently mentioned by French-speaking patients. A clinic is included because it is relevant to a patient’s decision, not because it pays us. The Hair Transplant Observatory is not affiliated with any clinic and does not earn referral commissions.

The Two Medical Criteria That Shape the Ranking

Our ranking is built on the quality of the medical framework, meaning verifiable criteria that determine the long-term result. In our view, two steps matter most:

  • Is the initial consultation led by a doctor?, not by a salesperson or a patient coordinator. This is when the diagnosis happens: the donor area is assessed and candidates are screened.
  • Does the doctor personally perform the anesthesia and the incisions?, since the incision technique determines the angle, depth, and natural appearance of the implantation. Delegating this step to technicians is a point of concern documented by medical societies.

We also weigh secondary criteria: instrumental analysis of the donor area (trichoscopy), pricing transparency, and post-operative follow-up (check-ups at day 1, day 10, month 6, and month 12).

The Overall Score Out of 100

Every clinic receives a score out of 100. This is an editorial assessment, not an automated calculation: we weigh six criteria, from most to least decisive, then assign an overall score along with a short analysis. We do not publish a breakdown score for each individual criterion, so as not to create a false impression of precision.

The six criteria, in order of importance:

  1. The doctor’s role in the operating room (the heaviest weight): who leads the consultation, who performs the anesthesia and incisions, who supervises the procedure.
  2. The surgeon’s experience and recognition: years in practice, membership in medical societies, reputation on independent sources.
  3. Diagnosis and candidate screening: the rigor of the donor-area analysis (trichoscopy, biometrics), and the willingness to turn away an ineligible candidate.
  4. Follow-up and care pathway: in-person consultation, continuity of follow-up (day 1 through month 12), and the possibility of recourse.
  5. Results and natural appearance: patient cases documented on independent forums, how natural the hairline and density look, and consistency of results over time.
  6. Value for money and transparency: what the price actually covers, consistency between the price, the protocol and the follow-up, and pricing clarity.

The score is not a Google star average (too easy to inflate): a high score signals a solid, proven medical framework, not a guarantee of an individual result.

The Three Categories: A Complementary View

In addition to the score, every clinic carries a category that summarizes the doctor’s role at a glance:

  • Category 1, Doctor fully involved: consultation and incisions performed by the doctor.
  • Category 2, Doctor partially involved: only one of the two steps.
  • Category 3, Worth a closer look: neither step is publicly documented.

The category reflects a model of medical organization, not a country or a reputation. Category 3 does not prejudge the quality of any individual procedure: it simply flags the clinics where we encourage patients to ask the most questions.

How We Handle Reviews and Patient Feedback

A review score, on its own, doesn’t say much: the result of a transplant is judged at 10 to 12 months, many reviews are posted too early, and a rating can be actively solicited. We do not publish any “verdict” on authenticity, and we do not label any clinic as fraudulent. That is neither our role nor something we could establish reliably.

What we do instead:

  • we point to independent sources (specialized forums, surgeon coalitions, patient logs) that anyone can consult directly;
  • we explain, in general terms, how to read a review and which signals call for caution;
  • we let readers form their own opinion from these sources.

Our advice: be particularly vigilant with reviews, and do not hesitate to dig into them (read the negative ones, look for detailed and dated feedback, cross-check with independent forums). That is often where the real signals are, more than in the average rating.

How Prices Are Estimated

Price ranges are indicative. They are based on public information, patient feedback, and the general order of magnitude observed in the market. Only a personalized quote, obtained from the clinic after an in-person examination, should be considered definitive.

What We Verify, and What We Cannot Verify

What we can document:

  • the clinic’s location and stated positioning;
  • the announced patient pathway and protocol;
  • the information available on the clinic’s own website;
  • the existence of public references and feedback.

What we cannot confirm:

  • the exact volume of procedures performed;
  • the actual regrowth rate at 12 months;
  • the doctor’s real involvement in every procedure;
  • the true long-term satisfaction of every patient.

This distinction matters: we publish an independent editorial analysis, not medical advice, and we state this on every clinic profile.

Updates and Right of Reply

Our analyses are updated regularly; the date of the last update appears on every page. A clinic that believes some information is inaccurate can request a documented correction through our About page. We correct any confirmed factual error.

Medical information. This is an independent information website. Its content is not a substitute for a medical consultation: any decision must be confirmed with a doctor during an in-person assessment.