How to Choose a Longevity Clinic: 10 Verifiable Criteria

Glossy dashboards, spaceship-like machines and an IV menu are easy to display. It is harder to show who is accountable if something goes wrong, why a test will change a decision and what happens when you go home. That is where a useful comparison begins.

Choosing a longevity clinic is not about finding the centre that measures the most things or says innovation most often. It is about checking whether it can provide responsible healthcare for your goal, distinguish prevention from experimentation and tell you, when appropriate, “you do not need this”.

There is a conflict of interest you should know about: Progevita operates a longevity clinic. This guide is not an independent ranking. Apply the same questions to Progevita, request documentary evidence and compare alternatives before deciding.

Clinical and editorial review: 29 August 2026. This guide is educational and intended to help compare providers, not recommend individual tests or treatments. The authorisation systems and registers cited apply to Spain and the European Union; check the destination country's rules if you travel.

Before the ten criteria: what does “longevity clinic” mean?

There is no universally accepted model. The framework by Mironov and colleagues proposes one possible structure, while explicitly recognising that no single standard exists. It is an academic proposal, not accreditation or a checklist that automatically turns a centre into good medicine.

The label does not define which activities a provider may perform. In Spain, Royal Decree 1277/2003 establishes the general basis for authorising healthcare centres, services and establishments. The public REGCESS register lets users search registered centres. A spa may provide an excellent wellness service, and a medical office may provide sound care, but neither should claim a scope it is not authorised to deliver.

If you are still defining the category, start with what a longevity clinic is. This guide addresses the next decision: how to verify one before booking.

The ten criteria in one table

Criterion	A question that opens information	Red flag
1. Legal identity	Which authorised facility delivers care, and who is clinically accountable?	Brands, advisers or titles without verifiable names and registers.
2. Goal and scope	What specific problem is the programme intended to address?	Universal promises of rejuvenation or extra years.
3. Initial assessment	Who reviews history, medication and contraindications before selling?	The package is fixed before they know you.
4. Testing	Which decision could each result change?	Huge panels with no plan for false positives.
5. Evidence and status	Is it standard care, off-label, experimental or part of a trial?	A mechanism or testimonial is presented as efficacy.
6. Consent	What are the risks, alternatives, uncertainties and conflicts?	Benefits in bold and harms in small print.
7. Records and data	How are medication, reports and privacy coordinated?	Sensitive data without a clear policy or records you cannot take away.
8. Safety	What happens after a reaction, emergency or serious result?	No accountable person, protocol or referral facility.
9. Price and contract	What is the total cost, and what is optional?	Extras sold during the stay or pressure to decide.
10. Follow-up	Who reviews the outcome, when and against which goal?	Discharge with a polished report and no continuity.

1. A legal identity and an accountable person

Ask for the legal entity, exact facility where care will be delivered, healthcare authorisation and medical lead. You do not need to count how many doctors appear in a corporate photograph. You need to know who assesses you, who prescribes, who performs the procedure and who remains accountable afterwards.

The Spanish Medical Association's public register can verify doctors registered and entitled to practise in Spain. Ask for the competent professional register in other countries and for other professions. “Doctor”, “anti-ageing expert” or an impressive biography is not a substitute for the relevant licence.

Ask which entity invoices you and which accepts clinical responsibility. If consultation, tests and treatment are supplied by different companies, each part should be identified.

2. A specific clinical goal and honest limits

“Optimise everything” is not a clinical goal. Clarifying a symptom, estimating a defined risk, improving function or reviewing prevention for your age and history can be. The sharper the question, the easier it is to judge whether the programme adds value.

A trustworthy clinic distinguishes what it can diagnose, what it can treat and what it can only explore. It does not promise to reverse your age, guarantee extra years or prevent most diseases. Marco Demaria's editorial on longevity clinics describes the risk of commercial incentives overtaking science and calls for greater transparency and oversight.

Ask for one plain sentence: “At the end, which decision do we expect to make better?” If no one can answer without words such as detox, reset or rejuvenation, there is not yet a clear clinical proposal.

3. Assessment before the package is sold

The first conversation should cover the reason for attending, symptoms, diagnoses, allergies, surgery, family history, mental health, pregnancy where relevant, habits, medication, supplements and the clinicians already caring for you. That information can alter or contraindicate a test, fast, infusion or exercise session.

Be cautious if treatment is decided before this review. Personalisation does not mean adding your name to a fixed protocol. Sometimes it means reducing the programme, postponing it, requesting a previous report or referring you to another specialty.

If you travel, ask which records are needed beforehand, what happens if you are unsuitable on arrival and who covers a medical need unrelated to the programme.

4. Proportionate, actionable testing

There is no universal minimum longevity panel. Laboratory work, imaging, body composition, function or a device earns its place when it answers a relevant question for that person. More data can also create incidental findings, anxiety, repeat tests and procedures without benefit.

For every test, ask:

• Which suspicion, risk or decision justifies it?
• Is it validated for people like me, and what are its limitations?
• What would you do with a normal, uncertain or abnormal result?
• Who confirms an unexpected finding, and what might that cost?
• Could it wait or be done with my usual care team?

An epigenetic clock, inflammation score or omics panel cannot by itself calculate your healthy years. Our guide to longevity biomarkers explains how to separate an actionable measure from an attractive number.

5. Keep evidence, authorisation and experimentation separate

“It is published on PubMed” is a starting point, not a conclusion. A paper may describe a mechanism, animals, an association, early safety or an outcome that does not matter to a patient. Ask for the exact intervention and which clinical outcome it has demonstrated in a population similar to you.

Question	A useful answer	What is not enough
What exactly is it?	Product, dose, route, manufacturer and protocol.	“NAD”, “peptides” or “cells” without specifics.
What is it authorised for?	A verifiable indication and product information.	Confusing availability with approval for longevity.
What was studied?	People, comparator, duration, absolute benefit and harms.	Mice, mechanism or an isolated biomarker change.
What remains uncertain?	Explicit limits and reasonable alternatives.	“It works because we see it in practice”.

In Spain, check authorised medicines in the AEMPS CIMA database. If a provider mentions a trial, ask for the identifier, sponsor, site, ethics approval, eligibility and injury cover; search for it in CTIS or ClinicalTrials.gov. Registration does not prove efficacy; it helps verify that the study exists and what it planned to measure.

Off-label does not automatically mean illegal or ineffective. It means an authorised medicine is used outside its product information. Quality depends on rationale, evidence, professional expertise, consent and monitoring. To compare interventions by certainty, read longevity treatments: what works and what remains experimental.

6. Consent that supports a decision, not just a signature

Spain's Patient Autonomy Act 41/2002 governs information, consent and clinical documentation. In practice, good consent arrives before irreversible payment or a procedure, uses understandable language and leaves room to ask questions or decline.

It should cover the goal, expected benefits, uncertainty, common and serious risks, alternatives, consequences of doing nothing and possible financial conflicts. If the prescriber sells the supplement, device or treatment, ask about that relationship and whether an alternative exists without the same incentive.

A signature cannot repair a poor conversation. Ask for time to read, a copy and a contact for questions. Urgency is a particularly poor companion for an elective intervention.

7. Medication, medical records and data under control

Bring a complete list of medicines, doses, supplements and allergies. Ask who will review interactions, whether they will communicate with your usual clinician and how changes will be documented. A longevity clinic should not destabilise treatment that already protects your health.

Confirm which report you will receive, in which language and format, and how you can access results and images. If the clinic collects genetics, biometrics, wearables or health records, ask who controls the data, which secondary uses apply, how long it is retained, where it is hosted and how to withdraw optional permissions. The EU General Data Protection Regulation treats health, genetic and biometric data as specially protected categories.

“We will use your data to improve science” is not specific enough. Care, research and marketing are different purposes.

8. Safety, adverse events and referral

An in-house laboratory or expensive machine does not guarantee quality. An accredited external laboratory may be entirely appropriate. What matters is traceability, competent staff and a plan when something goes off course.

Ask who is available during and after an intervention, how adverse events are recorded, which emergency equipment and medicines are present, which hospital accepts referrals and who bears the cost. For invasive procedures, add infection control, product batch, storage and specific follow-up.

There must also be a pathway for serious findings unrelated to longevity. An arrhythmia, anaemia, suspicious scan or mental health crisis needs clear timing and responsibility. “We will send you the report” is not a safety protocol.

9. Total price, a readable contract and freedom to decline

Do not use price as a shortcut for quality. A more expensive stay may include better hospitality, more tests or simply a different brand strategy. Request an itemised quote for initial consultation, tests, professional fees, treatments, accommodation, meals, transport, translation, reports, follow-up, tax and optional extras.

Check cancellation, refunds, changes after a contraindication and the cost of resolving findings. Ask whether recommendations outside the package may appear during the stay and whether you can consider them without losing terms. A “from” price may orient you, but it cannot compare two proposals.

Prices change and deserve their own page. Our longevity clinic cost guide explains how to build a comparable budget without mixing medical care and hospitality.

10. Follow-up, outcomes and a route to complain

Before starting, agree on the outcome that matters: symptoms, function, blood pressure, a clinical risk or a sustainable behaviour. Define when it will be reviewed and what change would justify continuing, adjusting or stopping an intervention. Automatically repeating the entire panel can add cost without improving decisions.

Ask who responds when you return home, how many reviews the price includes, what happens after a late complication and how the plan connects with primary care or specialists. Also request the complaints route, professional liability cover and policy if contracted care is not delivered.

Published research or a university collaboration may be interesting, but neither replaces these controls. A conference, famous figure or photograph with a scientist does not prove the quality of your care.

Red flags that justify pausing

• Guarantees of “age reversal”, broad cures or extra years of life.
• Treatment sold before history, medication and contraindications are reviewed.
• Generic names without product, dose, manufacturer or regulatory status.
• Testimonials, awards or social posts used as the main evidence.
• Pressure to pay today, discounts that prevent reflection or opaque financing.
• Extensive testing without explaining false positives, confirmation or incidental findings.
• No understandable consent, clinical report or access to results.
• No identified person for emergencies, adverse events, referral or follow-up.

One sign may have an explanation. Several together change the decision. If something does not add up, ask for it in writing and take it to an independent clinician.

Residential, urban or usual care?

A pleasant setting may help you rest, move and focus on a plan. That can improve the experience, but it does not turn scenery into clinical efficacy. A residential stay may make sense when it safely groups assessments or rehabilitation, reduces logistical friction or supports skills and habits.

For routine prevention, medication adjustment or chronic disease follow-up, a nearby service integrated with your records may be more useful. If you are comparing destinations, read our guide to longevity clinics in Europe as a starting shortlist, never as a substitute for verifying facilities and professionals.

A twenty-minute comparison

1. Write one sentence describing what you want to solve and what you are not seeking.
2. Ask each provider for its legal identity, medical lead and healthcare authorisation.
3. Request an anonymised example of a report and follow-up, not patient data.
4. Choose one test and one treatment in the programme and apply the evidence questions.
5. Compare total cost, not the entry price.
6. Ask what happens after a serious result and who responds when you are home.

If a provider makes these answers easy without becoming defensive, you have already learned something. If Progevita is on your list, you can request an initial assessment and ask for the same information. Our commercial interest exists; your right to compare does too.

Frequently asked questions

Is longevity medicine a regulated medical specialty?

The label longevity clinic does not by itself accredit a facility or a specialty. In Spain, check that the centre and its units are authorised for the activities offered, identify the accountable physician and verify that each professional is registered and entitled to practise. A modern name is not a substitute for those safeguards.

How can I verify a clinic and its doctors?

Ask for the legal entity, healthcare address, authorisation number or code, name of the medical lead and professional registration number. In Spain, search the centre in REGCESS and the doctor in the public CGCOM register. For care abroad, use the equivalent registers maintained by that country's health authority.

Which tests should a longevity clinic order?

There is no universal panel. Tests should respond to your history, symptoms, age, family background, medication and goals, with a planned consequence. Ask what decision each result could change, which false positives it may create and who will manage an unexpected finding.

What evidence should I request for a treatment?

Ask for the exact intervention, purpose, regulatory status, population studied, comparator, clinical outcomes, harms and alternatives. A mechanism, animal study, biomarker or single paper does not on its own show that a treatment improves your health or extends life.

What are the main longevity clinic red flags?

Promises to reverse age or add years of life, selling before reviewing your medical history, hidden credentials or regulatory status, testimonials used as proof, pressure to pay, failure to explain risks and alternatives, or no plan for emergencies, abnormal results and follow-up.

Is an off-label or experimental treatment always inappropriate?

Not necessarily, but it requires more clarity. Off-label means an authorised medicine is used outside its product information; it is not automatically experimental or effective. The clinic should explain rationale, uncertainty, alternatives, consent and monitoring. A registered trial also does not prove that a treatment works.

What should I ask about price?

Request an itemised quote covering consultations, tests, treatments, accommodation, taxes, follow-up and optional extras. Confirm cancellation terms, what happens if a test makes the programme unsuitable, the cost of repeating or explaining results and whether additional sales occur during the stay.

Is a residential clinic better than outpatient care?

It depends on the goal. A stay may simplify logistics, rest and adherence, but it does not prove greater medical effectiveness. For routine prevention or risk management, continuity with primary care and specialists may matter more. Choose the format that solves your need and provides clear follow-up at home.

Sources

1. Demaria M. Longevity clinics: between promise and peril. Aging. 2025. PMID: 41085401.
2. Mironov S, Borysova O, Morgunov I, Zhou Z, Moskalev A. A Framework for an Effective Healthy Longevity Clinic. Aging and Disease. 2024. PMID: 38607731.
3. Spanish Official Gazette. Royal Decree 1277/2003 on authorisation of healthcare centres, services and establishments.
4. Spanish Ministry of Health. General Register of healthcare centres, services and establishments (REGCESS).
5. Spanish General Council of Official Medical Associations. Public register of doctors.
6. Spanish Official Gazette. Patient Autonomy Act 41/2002 on information, consent and clinical documentation.
7. Spanish Agency of Medicines and Medical Devices. CIMA medicines database.
8. European Medicines Agency. Clinical Trials Information System public search.
9. U.S. National Library of Medicine. ClinicalTrials.gov.
10. European Union. Regulation (EU) 2016/679, General Data Protection Regulation.

Method: narrative review of the cited academic article, official registers and legislation. Registry presence, product authorisation and evidence of benefit are treated as separate questions. Sources checked 29 August 2026. Google blocked automated search, so intent was checked against the internal inventory; Search Console and backlink data were unavailable.