Hexarelin vs MOTS-c
A detailed comparison to help you understand the differences and choose the right peptide for your research goals.
Hexarelin
Hexarelin is a potent synthetic hexapeptide growth hormone secretagogue. It provides the strongest GH release among GHRPs but is associated with rapid desensitization of receptors.
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 | Hexarelin | MOTS-c |
|---|---|---|
| Dose Range | 100 mcg–300 mcg | 5 mg–10 mg |
| Frequency | 2x daily | Less than daily |
| Cycle Length | 8–12 weeks | 8–12 weeks |
| Route | subcutaneous | subcutaneous |
| Mechanism | Acts as a ghrelin mimetic with high potency at the GHS receptor. Provides powerful GH release but receptor desensitization occurs faster than with other GHRPs, requiring cycling. | 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 | Typical dosing: 100-200mcg administered 2-3 times daily for 4-6 weeks, followed by an equal off period to allow receptor resensitization. | Research protocols typically use 5-10mg administered subcutaneously several times per week. Optimal dosing not yet established. |
| Administration | Subcutaneous injection. Cycling is essential to maintain effectiveness. Often used in short bursts rather than continuous protocols. | Subcutaneous injection. Often combined with exercise protocols as it enhances exercise capacity and metabolic adaptation. |
| Side Effects | Water retention, cortisol and prolactin increase, hunger (moderate), tingling, and potential blood pressure effects. | Limited human data. Animal studies show good tolerability. May affect energy levels and exercise performance. |
| Best For |
What They Have in Common
Hexarelin, MOTS-c are both commonly used for:
Key Differences
Unique to Hexarelin:
Unique to MOTS-c:
Which Has Stronger Evidence?
- Muscle Growth: Hexarelin has stronger research support.
| Goal | Hexarelin | MOTS-c |
|---|---|---|
| Muscle Growth | high | low |
Key Studies
Hexarelin
- Hexarelin promotes the survival of retinal ganglion cells after optic nerve transection.
Indian journal of pharmacology, 2026
- Hexarelin alleviates apoptosis on ischemic acute kidney injury via MDM2/p53 pathway.
European journal of medical research, 2023
- Hexarelin attenuates abdominal aortic aneurysm formation by inhibiting SMC phenotype switch and inflammasome activation.
Microvascular research, 2022
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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