What MOTS-c does, what it might do in humans, and how to track it honestly.
At a glance
MOTS-c is a 16-amino-acid peptide encoded within mitochondrial DNA. That detail is unusual: most peptides come from nuclear genes. MOTS-c was identified as part of a class of mitochondrial-derived peptides that appear to act as signals between mitochondria and the rest of the cell, particularly around energy metabolism and stress response.
In preclinical studies, MOTS-c influences AMPK activation, glucose uptake, and has been described as an "exercise mimetic" in mouse models, improving running capacity and metabolic parameters. Human data exists but is limited, and most of it is observational (lower circulating MOTS-c in older or insulin-resistant individuals) rather than from controlled trials.
Self-experimenters typically use:
There is no established therapeutic dose in humans for the use cases people pursue. Do not extrapolate from mouse mg/kg dosing.
The compelling MOTS-c story is largely preclinical. Human users sometimes report better aerobic capacity and easier glycemic control, but well-controlled trials at the doses people use are not available. Set measurable targets before starting and a stop date if you do not see them.
In Peptide IA, log each injection with site and dose, then track morning fasting glucose, resting HR, and HRV. Add a weekly performance metric: a fixed cardio test, a strength benchmark, or perceived exertion at a standard workload. Compare months on and off.
MOTS-c is one of the most biologically interesting peptides in the metabolic space, and one of the most over-extrapolated. The honest stance is curious, cautious, and measurement-driven.
Peptide IA is an educational and self-tracking tool. Nothing in this post is medical advice. Doses mentioned reflect what is commonly reported in research literature — they are not recommendations. Always consult a qualified physician before starting, changing, or stopping any protocol.