Compound comparison

AOD-9604 vs MOTS-c

AOD-9604 and MOTS-c are both research peptides discussed for metabolism and body fat, with different origins and mechanisms.

Updated September 2026
This page is an educational comparison, not medical advice, and it does not recommend either compound. Regulatory status differs between them; see the table below.

AOD-9604 and MOTS-c are both categorized under weight management in the PeptidesAI encyclopedia, and neither is FDA-approved. AOD-9604 is a modified fragment of human growth hormone studied for fat metabolism. MOTS-c is a peptide encoded in mitochondrial DNA, studied as a metabolic regulator.

At a glance

AOD-9604MOTS-c
What it isModified fragment of human growth hormone (amino acids 177 to 191) studied for fat metabolismPeptide encoded in mitochondrial DNA, studied as a metabolic regulator and sometimes called an exercise mimetic
How it's thought to workStudied for mimicking the fat-breakdown region of growth hormone without its effects on blood sugar or growthStudied for moving to the cell nucleus under metabolic stress and activating AMPK signaling, affecting glucose and fat metabolism
Regulatory statusNot FDA-approved for any use; clinical development did not lead to an approved productNot FDA-approved for any human use
Strength of evidenceAnimal studies of fat breakdown; published human data is mostly about safety and tolerabilityInsulin-sensitivity and exercise findings come from animal studies; human research is at an early stage
Reported side effectsInjection site irritation, headache, mild nauseaInjection site reactions; long-term human data is limited
Common vial sizes5mg5mg, 10mg
Mixing math example5 mg + 2.5 mL BAC water = 2,000 mcg/mL, 20 mcg per unit10 mg + 2 mL BAC water = 5,000 mcg/mL, 50 mcg per unit

Key differences

AOD-9604 is studied for mimicking the fat-breakdown region of growth hormone while inhibiting fat formation. MOTS-c is studied for moving to the cell nucleus under metabolic stress and activating AMPK signaling, a pathway involved in energy regulation, glucose use and fat metabolism.

AOD-9604 comes from a hormone: it corresponds to amino acids 177 to 191 of human growth hormone. MOTS-c is encoded in the mitochondrial genome rather than being a copy of a hormone or hormone fragment.

AOD-9604's reported side effects include injection site irritation, headache and mild nausea. MOTS-c's reported side effects are injection site reactions, and long-term human data is limited.

What the research covers

AOD-9604's fat-breakdown findings come from animal research, and published human data is mostly about safety and tolerability; clinical development did not lead to an approved product. MOTS-c's findings on insulin sensitivity and exercise capacity come from animal studies, and human research is at an early stage.

Sources

  1. The effects of human GH and its lipolytic fragment (AOD9604) on lipid metabolism following chronic treatment in obese mice and beta(3)-AR knock-out mice. Heffernan M et al. Endocrinology, 2001. Preclinical
  2. Safety and Tolerability of the Hexadecapeptide AOD9604 in Humans. Stier et al. Journal of Endocrinology and Metabolism, 2013. Human trial
  3. The mitochondrial-derived peptide MOTS-c promotes metabolic homeostasis and reduces obesity and insulin resistance. Lee C et al. Cell Metabolism, 2015. Preclinical
  4. MOTS-c is an exercise-induced mitochondrial-encoded regulator of age-dependent physical decline and muscle homeostasis. Reynolds JC et al. Nature Communications, 2021. Human trial

How we choose and check sources

Frequently asked questions

What is the difference between AOD-9604 and MOTS-c?

AOD-9604 is a fragment of human growth hormone studied for fat breakdown. MOTS-c is a mitochondrial-encoded peptide studied for activating AMPK signaling and metabolic regulation.

Is AOD-9604 or MOTS-c FDA-approved?

Neither is FDA-approved for any human use.

Is there human research on AOD-9604 or MOTS-c?

AOD-9604 has published human data, mostly about safety and tolerability. MOTS-c human research is at an early stage, and its main findings come from animal studies.

Where do AOD-9604 and MOTS-c come from?

AOD-9604 is based on amino acids 177 to 191 of human growth hormone. MOTS-c is encoded in mitochondrial DNA.

Both entries, plus the calculator

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