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Peptides, hormones and pipeline drugs

MOTS-c

MOTS-c is a small peptide encoded by mitochondrial DNA, studied in animals for effects on metabolism and sold online without FDA approval or human trial evidence.

Clinician review pending Updated Peptides, hormones and pipeline drugs
DefinitionMOTS-c is a small peptide encoded by mitochondrial DNA, studied in animals for effects on metabolism and sold online without FDA approval or human trial evidence.

What it means

MOTS-c is one of a handful of short peptides made from instructions in mitochondrial DNA rather than the cell nucleus. Mouse studies suggested it may affect how muscles use sugar and how the body responds to diet and exercise. That research is early.

The FDA lists MOTS-c among bulk substances nominated for compounding that may raise significant safety concerns. The agency said it had no human exposure data for any route of use and lacked important safety information. MOTS-c was among the peptides discussed at an FDA advisory committee meeting in July 2026; check FDA pages for any later decision.

There are no published trials showing that MOTS-c causes weight loss in people. It is not FDA-approved, and products sold online are unregulated.

Sunny Weigh does not give dosing or buying information for unapproved substances.

Why it matters

Interesting mouse research is a long way from a proven medicine, and MOTS-c has not made that journey.

Related terms

Research peptides ("not for human use")PeptideBPC-157What are peptides for weight loss

Sources

  1. FDA: Bulk drug substances that may present significant safety risks

Clinician review pending. Drafted from primary sources and waiting for sign-off by a licensed clinician (MD, DO or PharmD) before launch. Every number is checked against its source. Drug facts are re-checked quarterly, prices monthly and whenever a label changes. How we review · Report an error