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What This Page Explains
The Urolithin A supplement market is dominated by one primary clinical-grade product (Mitopure® by Amazentis SA) that has been used in nearly all published human clinical trials. This page provides a quality assessment framework for evaluating UA brands, covering clinical backing, certifications, red flags, and price context.
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Detailed Evidence
THE UROLITHIN A SUPPLEMENT LANDSCAPE The UA supplement market is dominated by one primary clinical-grade product (Mitopure® by Amazentis SA) that has been used in nearly all published human clinical trials. Several other brands offer UA in various formulations, but most lack independent clinical trial data using their specific product. This distinction is important: evidence from trials using one formulation does not automatically apply to other products with potentially different purity, bioavailability, or composition. CLINICAL BACKING: THE KEY DIFFERENTIATOR The most important quality marker is whether a brand's specific formulation has been tested in published, peer-reviewed clinical trials. As of 2026, Mitopure® (Amazentis SA, Switzerland) has been used in approximately 8–10 published human trials, including the landmark studies in Nature Medicine (2016, preclinical), Nature Metabolism (2019), JAMA Network Open (2022), and Cell Reports Medicine (2022). Other UA products may use different synthesis methods, purity levels, or formulations that have not undergone equivalent clinical evaluation. QUALITY ASSESSMENT FRAMEWORK When evaluating any UA brand, apply these criteria: (1) Published clinical data — Has this specific product been used in peer-reviewed human trials? (2) Third-party certifications — USP, NSF International, or ConsumerLab verification of identity and purity, (3) Certificate of Analysis — Does the company provide batch-level CoA documentation? (4) Manufacturing standards — cGMP-certified facility? (5) Ingredient transparency — Clear disclosure of UA amount, form, and excipients, (6) Company transparency — Published research team, accessible customer service, clear return policy. SYNTHETIC vs FERMENTATION-DERIVED UA UA can be produced through chemical synthesis or microbial fermentation. Mitopure® is a synthetic crystalline form with well-characterized purity. Some newer products use fermentation-derived UA. Both methods can produce high-purity UA, but the key question is whether the specific end product has been tested in clinical trials. The production method alone does not determine quality — what matters is the final product's purity, stability, and clinical backing. RED FLAGS IN UA PRODUCTS Be cautious of: (1) Products claiming to "cure" or "treat" diseases — these are illegal drug claims for supplements, (2) Proprietary blends that hide UA dosage — you should know exactly how much UA you're getting, (3) Products citing clinical trials that used a different formulation — this is misleading, (4) Unrealistically low prices that may indicate sub-standard purity, (5) No third-party testing or CoA available, (6) "Anti-aging miracle" marketing language — no supplement has proven anti-aging effects in humans. PRICE COMPARISON CONTEXT UA supplements typically cost $45–90/month for clinical doses (500–1000 mg/day). Mitopure® products are at the premium end due to patent protection and clinical backing. Generic UA products may be less expensive but typically lack equivalent clinical data. When evaluating cost, consider: cost per mg of verified UA content, clinical backing of the specific formulation, and third-party verification status.
Evidence Hierarchy
Systematic Reviews & Meta-Analyses
Multiple high-quality trials combined
Randomized Controlled Trials (RCTs)
Gold standard for treatment efficacy
Observational Studies
Can show associations, not causation
Case Reports & Expert Opinion
Hypothesis-generating only
Preclinical (Lab/Animal) Studies
Should NOT be extrapolated to humans
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Study Quality Indicators
Higher Quality Indicators
- Large sample size (hundreds to thousands)
- Randomized and blinded design
- Placebo-controlled comparison
- Published in peer-reviewed journals
- Replicated in multiple studies
- Registered trial protocol before starting
Lower Quality Indicators
- Small sample size (under 100)
- No control group or blinding
- Manufacturer-funded with conflicts
- Only animal/cell studies
- Never replicated
- Published in predatory journals
Important Limitations
- • Supplement research often has methodological limitations
- • Results from one study may not generalize to all people
- • Marketing claims often exceed what research supports
- • Absence of evidence is not evidence of absence
- • Individual response to supplements varies widely
Quick Answers
What is the best Urolithin A brand?
Are all Urolithin A brands the same?
Is generic Urolithin A as effective as Mitopure?
What is Mitopure and who makes it?
How do I verify a Urolithin A brand's quality?
Why is Mitopure more expensive than other UA brands?
Can I trust Urolithin A brands on Amazon?
What red flags should I watch for in UA products?
Does the source of Urolithin A matter?
How many Urolithin A brands have clinical trials?
Is Timeline (Mitopure) the only option?
What dose should a good UA supplement provide?
Should Urolithin A be taken as a capsule or powder?
Are there Urolithin A supplements for athletes?
Will Urolithin A supplements get cheaper over time?
Key Research Facts
As of 2026, only one branded Urolithin A formulation (Mitopure® by Amazentis SA) has been used in published, peer-reviewed human clinical trials.
Strong EvidencePubMed literature search — Accessed March 2026
Mitopure® has been tested in approximately 8–10 published human trials including Nature Metabolism (2019), JAMA Network Open (2022), and Cell Reports Medicine (2022).
Strong EvidencePublished trial registry — Multiple DOIs
UA supplements cost approximately $45–90/month for clinical doses (500–1000 mg/day), with Mitopure® products at the premium end of the range.
Strong EvidenceMarket pricing analysis — Accessed March 2026
The FDA does not require dietary supplement manufacturers to prove efficacy before marketing — only safety and truthful labeling under DSHEA (1994).
Strong EvidenceFDA regulatory framework — DSHEA, Public Law 103-417
Third-party testing by USP, NSF International, or ConsumerLab provides independent verification of supplement identity, purity, and potency.
Strong EvidenceCertification body standards — USP/NSF guidelines
ConsumerLab and independent testing have found significant quality discrepancies in many dietary supplement categories, including incorrect doses and contamination.
Strong EvidenceConsumerLab published reports — ConsumerLab.com annual reports
Synthetic crystalline UA and fermentation-derived UA can both achieve high purity, but the specific end product's clinical backing is what differentiates quality.
Moderate EvidenceManufacturing science — Pharmaceutical quality principles
cGMP (current Good Manufacturing Practice) certification ensures consistent manufacturing conditions but does not guarantee product efficacy.
Strong EvidenceFDA manufacturing regulations — 21 CFR Part 111
Evidence from clinical trials using one specific formulation cannot be assumed to apply to other UA products without comparative bioavailability or efficacy studies.
Strong EvidencePharmaceutical equivalence principles — FDA bioequivalence guidance
Proprietary blends that hide individual ingredient amounts prevent consumers from verifying whether the product contains a clinically relevant dose of UA.
Strong EvidenceSupplement labeling analysis — FDA labeling requirements
Continue Your Research
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Citations & External Resources
FDA — How to Choose a Dietary Supplement
USP — Supplement Verification Program
NSF International — Supplement Certification
ConsumerLab — Independent Supplement Testing
ClinicalTrials.gov — Search: Urolithin A
PubMed — Urolithin A clinical trials
FDA — cGMP Regulations (21 CFR Part 111)
JAMA Network Open — Liu et al. 2022 (UA Muscle Endurance)
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Related Reading
Urolithin A Supplements: Forms, Quality & Availability
Urolithin A: The Complete Evidence-Based Guide
Urolithin A: What It Is & How It's Made
References (3)
Written by
ReCellence™ Editorial Team
Health Content Specialists
Medically reviewed by
Medical Review Board
MD, PhD
Last updated: March 8, 2026
Last medical review: March 8, 2026