MOTS-c vs Thymalin
A detailed comparison to help you understand the differences and choose the right peptide for your research goals.
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 →Thymalin
Thymalin is a polypeptide preparation derived from calf thymus. Developed in Russia, it has been used for decades to support immune function and has shown potential anti-aging effects in long-term studies.
Full details →Side-by-Side Comparison
| Aspect | MOTS-c | Thymalin |
|---|---|---|
| Dose Range | 5 mg–10 mg | 5 mg–10 mg |
| Frequency | Less than daily | 1x daily |
| Cycle Length | 8–12 weeks | 1–2 weeks |
| Route | subcutaneous | intramuscular |
| Mechanism | 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. | Regulates the ratio of T-cell subpopulations, stimulates cellular immunity, and enhances phagocytosis. Also affects neuroendocrine regulation and may influence melatonin production. |
| Typical Dosage | Research protocols typically use 5-10mg administered subcutaneously several times per week. Optimal dosing not yet established. | Clinical protocols: 5-20mg daily intramuscularly for 3-10 days. Often cycled 1-2 times per year for maintenance. |
| Administration | Subcutaneous injection. Often combined with exercise protocols as it enhances exercise capacity and metabolic adaptation. | Intramuscular injection. Usually administered in short courses rather than continuously. Often combined with Epithalamin for anti-aging protocols. |
| Side Effects | Limited human data. Animal studies show good tolerability. May affect energy levels and exercise performance. | Generally well-tolerated. May cause injection site reactions or temporary flu-like symptoms as immune function is modulated. |
| Best For |
What They Have in Common
MOTS-c, Thymalin are both commonly used for:
Key Differences
Unique to MOTS-c:
Unique to Thymalin:
Which Has Stronger Evidence?
| Goal | MOTS-c | Thymalin |
|---|---|---|
| Anti-Aging & Longevity | medium | medium |
Key Studies
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
Thymalin
- Reparative osteogenesis in mandible in cases of filling a bone defect with hydroxyapatite-containing osteotropic material and injecting the surrounding soft tissues with thymalin: experimental and morphological study.
Wiadomosci lekarskie (Warsaw, Poland : 1960), 2024
- Expression features of T-lymphocytes, B-lymphocytes and macrophages in the post-traumatic regenerate of the mandible rats under conditions of filling a bone defect with hydroxyapatite-containing osteotropic material and thymalin injecting the surrounding soft tissues.
Polski merkuriusz lekarski : organ Polskiego Towarzystwa Lekarskiego, 2024
- The Influence of KE and EW Dipeptides in the Composition of the Thymalin Drug on Gene Expression and Protein Synthesis Involved in the Pathogenesis of COVID-19.
International journal of molecular sciences, 2023
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