Glossary · Updated 2026-05-22

What Is MOTS-c? The Mitochondrial-Derived Peptide Explained

MOTS-c is a 16-amino-acid mitochondrial-derived peptide sold for laboratory research use only. Here is what it is and how to verify a COA.

MOTS-c is a small peptide of 16 amino acids that is encoded within mitochondrial DNA rather than the cell nucleus, which makes it part of a class called mitochondrial-derived peptides. It is sold for laboratory research use only.

What makes MOTS-c unusual

Most peptides in the body are encoded by nuclear DNA. MOTS-c is different: it is encoded within a region of mitochondrial DNA. That origin places it in the same mitochondrial-derived peptide family as humanin.

Research-use status

Published literature on MOTS-c is mostly animal and cell work, and this page does not summarise effects or uses. MOTS-c is sold strictly as a research compound, not an approved therapeutic.

COA considerations for MOTS-c

As a defined-sequence peptide, MOTS-c can be confirmed by mass spectrometry for identity and HPLC for purity. A trustworthy COA names the lab, reports purity with decimal precision, and ideally includes endotoxin testing for any product intended for injection in a research setting.

What to check before buying

Verify a named third-party lab, a purity percentage that matches the label claim, a recent test date, and a verification key or portal where the lab supports one. Treat unnamed-lab purity claims as unverified.

Frequently Asked Questions

How many amino acids is MOTS-c?

MOTS-c is a 16-amino-acid peptide. Its defined sequence means identity can be confirmed by mass spectrometry on a proper COA.

Is MOTS-c approved for human use?

No. MOTS-c is sold as a research compound only and is not an approved drug. Nothing on this site is medical advice.

What should a good MOTS-c COA include?

A named lab, HPLC purity with decimals, mass-spec identity confirmation, and ideally endotoxin testing, with a verification key where available.

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Peptide Source Review covers research peptides: substances sold for laboratory and research purposes, not for human consumption. By continuing, you confirm that you are at least 18 years old and that nothing on this site is medical or legal advice.

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