SERIOUS: a 2019 autism paper was RETRACTED for failing to disclose pay-to-participate conflicts ($7,200 for four visits).
That trial had no control group.
Highest price in the regenerative set with no corresponding evidence advantage.
Founder is not a physician.
Published on every entry, including the top-ranked ones. A clinic with no red flags listed has not been proved clean — it has not had one found in this research pass.
Published price
$26,900 adults / $15,825 childrenVerified price
per course
Verified via independent fact-check, not from the clinic's own marketing.
ARK never bills treatment and takes no share of what a clinic charges you — you pay the clinic or vendor directly. Prices shown are their own published prices, labelled with how they were verified.
What they do
Umbilical-cord MSC infusions for autism, multiple sclerosis, spinal cord injury, autoimmune conditions and anti-ageing. The best-known clinic in the category.
The evidence behind the primary service
MSC stem cells (systemic / IV) — grade D, carried unchanged from the ARK Protocol Library. A clinic's score cannot exceed 20 of 100 on service evidence, so no clinic can rank well on an unproven therapy.
There is no positive randomised efficacy trial for systemic MSC infusion in the wellness indications it is sold for. The FTC has permanently banned operators for claiming less than the industry routinely claims.
The systemic-infusion evidence base is one 30-person safety trial in frail 75-year-olds from 2017, with a non-monotonic dose response, never replicated.
Score breakdown
Price transparency25/25
Medical leadership0/25
Regulatory standing12/20
Evidence behind the primary service8/20
Disclosure & clean record0/10
Price transparency: Price published and independently sourced.
Medical leadership: Founder and Chief Science Officer Neil Riordan is a PA and PhD, not an MD. Local physician staff deliver treatment.
Regulatory standing: Operates under Panamanian regulation; specifics not independently confirmed in this pass.
Evidence behind the primary service: ARK Protocol Library grade D, carried unchanged. Capped at 20 of 100 so no clinic can rank on an unproven therapy.
Disclosure & clean record: 4 documented red flags, published on this card.
Verification status
Medical leadership: Founder and Chief Science Officer Neil Riordan is a PA and PhD, not an MD. Local physician staff deliver treatment.
Regulatory: Operates under Panamanian regulation; specifics not independently confirmed in this pass.
ARK Verified: No. No clinic in this directory has passed the registry check and the human call. There is no gold star anywhere in this build.
Accreditation (JCI etc.): Not captured for this entry in this research pass. Absence is scored as absence, never as good.
Outcomes / PROMs: None published. No clinic in the directory publishes complication rates.
Included deliberately. It is the most famous clinic in the category and members will find it with or without ARK — so ARK publishes the retraction alongside the price.