MGF (Mechano Growth Factor) vs MOTS-c
A detailed comparison to help you understand the differences and choose the right peptide for your research goals.
MGF (Mechano Growth Factor)
MGF (Mechano Growth Factor) is a splice variant of IGF-1 that is produced locally in muscle tissue in response to mechanical stress. The non-PEGylated form has a very short half-life.
Full details →MOTS-c
MOTS-c (Mitochondrial Open Reading Frame of the Twelve S rRNA type-c) is a mitochondrial-derived peptide that plays a key role in metabolic regulation and has emerged as a significant longevity research target.
Full details →Side-by-Side Comparison
| Aspect | MGF (Mechano Growth Factor) | MOTS-c |
|---|---|---|
| Dose Range | 400 mcg–1.2 mg | 5 mg–10 mg |
| Frequency | Less than daily | Less than daily |
| Cycle Length | 4–6 weeks | 8–12 weeks |
| Route | intramuscular | subcutaneous |
| Mechanism | Activates muscle satellite cells (stem cells) and promotes their proliferation without differentiation, priming them for fusion with existing muscle fibers during repair and growth. | Activates AMPK pathway, enhances glucose uptake in skeletal muscle, improves insulin sensitivity, and regulates mitochondrial function. Acts as a metabolic hormone affecting whole-body energy homeostasis. |
| Typical Dosage | Due to extremely short half-life (minutes), typical protocols use 100-200mcg injected directly into target muscles immediately post-workout. | Research protocols typically use 5-10mg administered subcutaneously several times per week. Optimal dosing not yet established. |
| Administration | Intramuscular injection into trained muscles within minutes of workout completion. Must be used immediately after reconstitution due to instability. | Subcutaneous injection. Often combined with exercise protocols as it enhances exercise capacity and metabolic adaptation. |
| Side Effects | Injection site soreness, potential hypoglycemia, localized swelling. Short half-life limits systemic effects. | Limited human data. Animal studies show good tolerability. May affect energy levels and exercise performance. |
| Best For |
What They Have in Common
MGF (Mechano Growth Factor), MOTS-c are both commonly used for:
Key Differences
Unique to MGF (Mechano Growth Factor):
Unique to MOTS-c:
Which Has Stronger Evidence?
- Muscle Growth: MGF (Mechano Growth Factor) has stronger research support.
| Goal | MGF (Mechano Growth Factor) | MOTS-c |
|---|---|---|
| Muscle Growth | medium | low |
Key Studies
MGF (Mechano Growth Factor)
- The role of mechano growth factor in chondrocytes and cartilage defects: a concise review.
Acta biochimica et biophysica Sinica, 2023
- Pretreatment with mechano growth factor E peptide attenuates osteoarthritis through improving cell proliferation and extracellular matrix synthesis in chondrocytes under severe hypoxia.
International immunopharmacology, 2021
- Mechano growth factor interacts with nucleolin to protect against cisplatin-induced neurotoxicity.
Experimental neurology, 2020
MOTS-c
- MOTS-c improves intrinsic muscle mitochondrial bioenergetic health and efficiency in a PGC-1α/AMPK-dependent manner.
Free radical biology & medicine, 2026
- MOTS-c attenuates lung ischemia-reperfusion injury via MYH9-Dependent nuclear translocation and transcriptional activation of antioxidant genes.
Redox biology, 2025
- MOTS-c: Magical Molecule for Diabetic Cardiomyopathy?
Cardiovascular drugs and therapy, 2025
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