How we score longevity clinics

The three parts

The score has three parts. Reviews give up to 60 points, the medical checks up to 20 and the programme up to 20. Penalties are taken off at the end, and the total never goes below 0. Every part, check and weight is in this table.

Evidence-based tests earn the points vocab gives each test: Blood panel 2, Metabolic markers 2, Calcium score 1, DEXA scan 1, VO2 max test 1, Genetic testing 1, Cancer screening 1, Ultrasound 1; biological age tests, whole-body MRI and other emerging or unproven tests earn 0. The total is floored at 0, kept exact for ranking, and shown as a whole number on reports and to one decimal on Top lists. Score version 1.1.

Medical checks. A confirmed facility licence earns 8 points, and a confirmed doctor's registration adds 4. In countries where a doctor's registration stands in for a facility licence ("Doctor registration confirmed"), that one check earns both, 12 points. A facility licence is the stronger check, so we ask for it wherever a country has one. The clinical-team points need staff other than the lead doctor: 4 when the clinic names a nurse, dietitian, exercise physiologist, physiotherapist or psychologist, 2 when it names only other doctors.

Programme. Prices count when the clinic publishes at least one price for an assessment, a scan, a blood panel, a membership or a programme. Evidence-based tests earn the points shown under the table, up to 8 in all. A doctor's consultation, a written plan and follow-up count only when the clinic's own pages say it offers them.

The score describes what a clinic publishes and what we could check. It does not measure the results of any test or treatment.

How reviews count

We use ratings of the clinic itself, never of a hotel or hospital it sits in, and only on the platforms that count in its country. Where a clinic has ratings on more than one counted platform, we pool them by number of reviews, with a quality factor for each platform: Google counts in full, Fresha at 0.8 and Tripadvisor at 0.6. A platform other than Google can count for no more reviews than the clinic has on Google; with no Google listing, there is no such limit.

Then we pull the pooled rating towards 4.5, as if the clinic had 30 more reviews at 4.5, so a clinic with a handful of perfect reviews does not outscore one with hundreds of good ones. An adjusted rating of 3.0 or less earns 0 points and 5.0 would earn all 60, with the points rising evenly in between.

Only ratings of the clinic itself count, never those of a hotel or hospital it sits in. The minimum of 10 reviews for ranking counts the raw reviews on counted platforms. Reviews are not verified as coming from patients. Read our review policy.

To decide whether reviews are about health services, we look at the newest Google reviews we read (up to 100) and count those that mention words such as assessment, check-up, screening, scan, MRI, blood test, doctor, consultation, programme, IV or health. Reviews only about rooms, food, facials or spa massages do not count towards that share.

Penalties

• Minus 5 points when one in five or more of the newest Google reviews we read are 5-star reviews from accounts that have written only one review. It never applies before the reviews have been read. Our review policy says how we look into these patterns.
• Minus 15 points when a wellness and IV studio, a provider with no named doctor in charge, lists medical treatments: IV drips (NAD+ included), hormones, peptides, stem cells, exosomes, plasma exchange, ozone, prescription medicines or aesthetic medicine such as injectables. Its report also shows a warning, and it is never ranked. A doctor-led IV clinic gets no penalty and no warning; it is listed, but never ranked.

Who is ranked

Every open clinic we list has a score; a clinic that has announced its opening is listed without one. A clinic is ranked in a Top list only when all of these hold:

• Its licence, or its lead doctor's registration, is confirmed in an official register within the last 12 months.
• It has at least 10 reviews of the clinic itself on the platforms counted in its country.
• Its reviews have been read for this guide, and at least a quarter (25%) of the recent ones are about health services.
• It is one of these types: longevity clinics, hospital units, diagnostics centres and medical wellness retreats. These are listed, never ranked: GP practices, doctor-led IV clinics and wellness and IV studios.
• A hospital unit or executive health centre names a doctor in charge of its assessments.
• It is open, it carries no medical warning, and it is not held for a correction or a legal review.
• Its country shows Top lists.

A place gets a Top list once 5 of its clinics can be ranked (a country also needs 5; the worldwide list 10). A list shows up to 10 clinics and at most 3 sites of one brand; the next clinic moves up. Ties go to the exact total, then the higher total review count, then the name (compared without accents and case), then the id. The nationwide group of US sites never gets its own list.

Clinics that are not ranked stay listed, with the reason shown in these words:

• Listed but not ranked: this type of provider does not offer a doctor-led longevity assessment.
• Listed but not ranked: a GP practice, whose health checks are part of its family-doctor service.
• Listed but not ranked: its pages name no doctor in charge of the assessments.
• Not open.
• Licence or registration not yet confirmed in an official register.
• Licence or registration last confirmed more than 12 months ago; a new check is due.
• The only ratings found are for the hotel or hospital that hosts the clinic.
• Fewer than 10 reviews of the clinic itself.
• Reviews not yet read for this guide.
• Fewer than a quarter of recent reviews are about health services.
• Lists medical treatments, such as IV drips or injections, but we found no named doctor in charge.
• Scores and rankings are not shown in this country yet.
• Not in this Top 10: a list shows at most 3 sites of one brand.

A ranked clinic left out of a Top list by the limit of 3 sites per brand stays ranked, and its report says why it is not in that list.

A worked example

This example is worked out live from a clinic record, so its figures change when the record does.

Lanserhof at The Arts Club, London, checked 16 Oct 2026:

Evidence labels

Each test and treatment on the guide carries one evidence label, the same in every country. The labels follow clinical guidelines and regulators' statements:

• Established: Recommended in clinical guidelines for defined uses.
• Emerging: Early human evidence; benefits for healthy ageing not yet shown.
• Unproven: No good evidence of benefit for healthy ageing; regulators have issued warnings or advise against routine use.
• Depends on use: Established for some medical conditions, unproven as a longevity treatment.

The labels do not change the score directly. Only the evidence-based tests in the programme part earn points.

How often we check

• Ratings and review counts: every month.
• Prices, services and the medical team: every four months, or sooner when a clinic sends a correction.
• Licences and registrations: every four months. A clinic stays ranked only while its licence or registration was confirmed within the last 12 months.
• Review reads and summaries: every four months, or after the number of Google reviews rises by a fifth.
• Exchange rates behind the "about US$" figures: every month, from the European Central Bank's reference rates.

Each fact shows the date we checked it. A rating older than 35 days, or a price, licence check or review summary older than 120 days, still shows, with a CHECK DUE tag next to its date.

Changes to the method