Verified July 2026 · Cited to primary sources
MOTS-c: Evidence Grade D. Animal studies only, unproven in humans.
An "exercise-mimetic" metabolic peptide. Real mechanistic interest, but human evidence is association-only.
The honest verdict
MOTS-c is not FDA-approved and is not yet legal to compound. On July 23, 2026 the FDA's PCAC panel voted 7 to 5 (2 abstentions) to recommend adding it to the 503A list for weight loss, overriding the FDA's own scientists, but the FDA still decides and has not acted. Human evidence stays Grade D: metabolic effects are mostly preclinical, with human data limited to associations. For actual weight loss, an approved GLP-1 is the evidence-backed route.
MOTS-c at a glance
- Class
- Mitochondrial-derived peptide (16-aa)
- Mechanism
- Mitochondrial-derived "exercise mimetic" that activates AMPK to improve insulin sensitivity and metabolic homeostasis in preclinical models.
- Also known as
- Mitochondrial ORF of the 12S rRNA type-c
- Research applications
- Metabolic health / insulin sensitivity (preclinical)
- Weight/fat loss and exercise performance (marketed; human data association-only)
- Forms
- subcutaneous injection
- Legal status
- Under FDA review
- WADA (anti-doping)
- UNKNOWN (not explicitly listed; possibly S0 or S4, verify)
- Evidence grade
- Grade DAnimal studies only, unproven in humans
How we grade evidence
Every grade comes from a fixed A to F rubric: human-trial strength, not hype or affiliate status. Last verified July 6, 2026.
What is MOTS-c?
Compound class: Mitochondrial-derived peptide (16-aa)
Mitochondrial-derived "exercise mimetic" that activates AMPK to improve insulin sensitivity and metabolic homeostasis in preclinical models.
How strong is the evidence for MOTS-c?
Grade D: preclinical plus early human observational/biomarker studies, no efficacy RCT (rule 5 fired).
Primary sources (3)
Is MOTS-c legal? (Status July 2026)
Regulatory limbo; the July 2026 PCAC panel has advised, the FDA decision is pending.
July 2026 PCAC vote
On July 23, 2026 the FDA's Pharmacy Compounding Advisory Committee voted to recommend adding MOTS-c to the 503A compounding list (7 to 5, with 2 abstentions), overriding the FDA's own scientists. That is an advisory recommendation, not legalization: the FDA still makes the final decision and has not acted, so MOTS-c is not yet legally compoundable. Track the FDA peptide vote →
What is MOTS-c used for?
MOTS-c is marketed for the goals below. See how it ranks against other peptides in each, by evidence, not hype.
What does MOTS-c cost, and how do you access it legally?
Typical cost
UNKNOWN
No verified clinic price anchor in the research; marked UNKNOWN.
No legal supervised access route right now.
MOTS-c has no compliant US route today while its compounding status is under FDA review. Vials sold "for research use only" are a gray-market fig-leaf, not a legal loophole, so we don't link them. If you pursue MOTS-c, do it with a licensed clinician, and re-check its legal status first.
Telehealth programs do advertise several compounds in this position as prescribable online. We checked those advertised menus against the law in peptide telehealth programs.
Trying to lose weight?
For weight loss, an approved GLP-1 beats this peptide.
No research peptide here has proven, legally-available weight-loss data that beats an approved GLP-1. Our sister site compares the options that actually work.
Is MOTS-csafe? Side effects & risks
Minimal human safety data; unknown long-term effects. The FDA's own reviewers found no human clinical studies supporting the nominated weight-loss use. WADA classification not explicitly listed, likely captured under S0 or S4 (metabolic modulators); verify before relying on it.
Medical disclaimer: This page is independent editorial information, not medical advice, and Best Peptide For That is not a medical provider. We do not provide dosing. Talk to a licensed clinician before starting, stopping, or changing any peptide or medication. Full medical disclaimer.
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FAQ
MOTS-c FAQ
Does MOTS-c help with weight loss?
MOTS-c improves metabolism and insulin sensitivity in animal models and is marketed as an "exercise mimetic," but human evidence is association-only, so it lands at Grade D. If weight loss is the goal, approved GLP-1 medications have the human trial data. See our weight-loss guidance.
Is MOTS-c FDA approved?
No. MOTS-c is not FDA-approved. On July 23, 2026 the FDA's PCAC panel voted 7 to 5 (2 abstentions) to recommend adding it to the 503A compounding list for weight loss, but that is an advisory recommendation. The FDA makes the binding decision and has not acted, so MOTS-c is not yet legally compoundable.
From our portfolio
Tracking MOTS-c?
Titrate is an iOS app for logging doses, schedules and progress over time, with a reconstitution calculator built in. It tracks, it does not prescribe.
Compare MOTS-c with…
Head-to-head evidence-grade matchups people weigh against MOTS-c.
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