Mitochondrial

Urolithin A

UA · Mitopure · urolithin A

Gut-microbiome metabolite of ellagitannins that activates mitophagy signaling. Sold as an oral longevity ingredient (e.g. Mitopure-branded products). Not a peptide. Not MOTS-c. Not SS-31. Do not put it in the reconstitution calculator.

Not FDA-approved - research chemical
Reviewed by CalcMyPeptide Editorial Team
Last updated: September 2026Evidence: Moderate
Typical research dose
Oral supplement / researched doses - not a peptide vial
Frequency
Once daily oral (product-dependent)
Half-life
Oral metabolite PK (not a peptide t½)
Common vials
N/A (oral)
CAS
1143-70-0
Molecular weight
~228 Da

Use-case scores

0–10 against the evidence we have, not a gym ranking. Hidden domains do not apply here.

  • Longevity / aging4/10

    Human supplement studies on mitophagy/muscle biomarkers exist. Not a lifespan NDA. Not a peptide. Score 4.

Compound card

Sequence
Small-molecule ellagitannin metabolite (not a peptide)
Class
Oral mitophagy-support ingredient (urolithin A)
Formula
C13H8O4
Status
Not FDA-approved · research use

How it works

Urolithin A is a gut-microbiome metabolite of ellagitannins (pomegranate, walnuts, etc.) studied for mitophagy — clearance of damaged mitochondria. Brand products exist. It is not MOTS-c, not SS-31, and not a reconstitution peptide.

Source: Published urolithin A human supplement and mitophagy papers; brand products are not research peptides

Research Use Cases

  • Mitochondrial / mitophagy literacy: Moderate
  • Peptide reconstitution: Low

Dosing

PhaseDoseFrequencyNotes
Oral productsPer studied supplement bands / product labelOnce daily oralTypically hundreds of mg in published supplement work. Follow the product you bought — this is not a vial.

Administration

Route / form
Oral
Timing
Daily with product instructions
Empty stomach?
No - Food timing is not critical.

Timeline

Weeks to months
Biomarker and muscle-function endpoints in supplement studies — not a peptide recovery curve.

Who it is for

Mitochondrial / mitophagy literacy

Moderate

Real human supplement literature. Still not a drug NDA.

Peptide reconstitution

Low

Wrong category.

Safety & Considerations

Oral ingredient. GI tolerance varies. Not a substitute for diagnosed mitochondrial disease care. Not injectable peptide PIP.

Regulatory & Legal Status

FDA Status (US)
Research Only
WADA Status (2026)
Not Listed

Not currently on the WADA 2026 Prohibited List. Policies may change - verify before competition.

Classification

Research Chemical

US Compounding: Not eligible / not available

⚠️ This information is for educational purposes only and may not reflect the most current regulatory updates. Always verify with official FDA, WADA, and jurisdiction-specific sources before use.

Limits of current evidence

  • Not a peptide. No BAC-water chart.
  • Human studies are supplement/biomarker programs, not a longevity drug label.
  • Brand doses are product-label problems, not research-chem folklore on this leaf.
  • This site will not treat mitochondrial disease from a UA page.

Verdict

Urolithin A is an oral mitophagy metabolite ingredient, not a peptide. Do not put it in the reconstitution calculator. It is not MOTS-c or SS-31.

Interactions & Contraindications

Oral ingredient. GI tolerance varies. Not a substitute for diagnosed mitochondrial disease care. Not injectable peptide PIP.

Frequently Asked Questions

Is Urolithin A a peptide?
No. It is a small-molecule metabolite.
Is it the same as MOTS-c?
No. MOTS-c is a mitochondrial ORF peptide. Different molecule and route story.

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