Patient protection
How to identify misleading stem cell claims
Most misleading marketing in this field is not an outright lie. It is a true sentence about laboratory work presented as if it were a clinical result.
- Medically reviewed by:
- Prof. Dr. Erdal Karaöz Team
- Last reviewed:
- Next review:
The short answer
Look for six patterns: a cure or guarantee of any kind; one therapy offered for an unrelated list of conditions; testimonials in place of measured outcomes; laboratory or animal findings described as if they were human results; 'patients pay to join our trial'; and urgency or discount pressure. Any single one justifies slowing down. Regulators including the FDA and scientific bodies including the ISSCR publish patient-facing warnings built around exactly these signals.
How to test a claim you have been given
These steps work at any clinic, anywhere. Nothing here depends on choosing us.
- Ask what the claim is based on: a human trial, a case series, an animal study, or the clinic's own unpublished experience. Ask for the reference.
- Check whether the outcome was measured with a validated scale or is a paraphrase of how patients say they feel.
- Check whether the claimed indication matches the evidence, or whether the same protocol is offered for a dozen unrelated diseases.
- Check for guarantees. No legitimate provider guarantees a clinical outcome in regenerative medicine.
- Check who is asking for money in a study context — patients paying to participate is a well-documented warning sign.
- Check the consent conversation: a provider willing to tell you that you are not a candidate is behaving differently from one that never declines anyone.
What good looks like, and what should worry you
| What you are checking | An acceptable answer | A red flag |
|---|---|---|
| Basis of claim | A citable human study, with limits acknowledged | 'Studies show' with no reference |
| Outcome measure | Validated scales, timepoints, numbers | Testimonials and before/after photos only |
| Indication breadth | A defined set of indications | One therapy for everything |
| Certainty language | 'May', 'in selected patients', 'not guaranteed' | 'Cure', 'guaranteed', 'permanent' |
| Trial framing | Registered trial, no charge to participate | Pay-to-participate 'trial' |
| Sales pressure | Time to think, documents up front | Countdown discounts and deposits |
How we grade claims like these: How we evaluate evidence · Editorial standards · Conflict-of-interest disclosure.
Documents to request in writing
Ask by email so the answer is documented. A clinic that cannot send these before payment is telling you something.
- The references behind any efficacy claim made to you
- The written list of risks and the possibility of no benefit
- The criteria under which the clinic would decline you
- The registration number, if a study is mentioned
Do not write it yourself: copy our ready-made email and WhatsApp request.
Frequently asked questions
Related verification guides
- How we evaluate evidence
- How to compare treatment prices
- The evidence base by condition
- 25 questions to ask before travelling
Use this on us too
Send these questions to us exactly as written. We answer them with documents, and if something does not apply to your case we say so.
