SHLP2 vs Thymalin
A detailed comparison to help you understand the differences and choose the right peptide for your research goals.
SHLP2
SHLP2 (Small Humanin-Like Peptide 2) is a mitochondrial-derived peptide similar to humanin. It has shown insulin-sensitizing and cytoprotective effects in research, with potential metabolic benefits.
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 | SHLP2 | Thymalin |
|---|---|---|
| Dose Range | 1 mg–5 mg | 5 mg–10 mg |
| Frequency | 1x daily | 1x daily |
| Cycle Length | 4–8 weeks | 1–2 weeks |
| Route | subcutaneous | intramuscular |
| Mechanism | Enhances insulin sensitivity and glucose uptake. Provides cytoprotective effects similar to humanin. May act through similar but distinct receptor pathways. | 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 compound with doses in the microgram to low milligram range studied in animal models. Human dosing not established. | Clinical protocols: 5-20mg daily intramuscularly for 3-10 days. Often cycled 1-2 times per year for maintenance. |
| Administration | Subcutaneous or intraperitoneal injection in research settings. Various SHLP analogs (1-6) have different properties. | Intramuscular injection. Usually administered in short courses rather than continuously. Often combined with Epithalamin for anti-aging protocols. |
| Side Effects | Limited data. Animal studies suggest good tolerability. May affect glucose metabolism. | 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
SHLP2, Thymalin are both commonly used for:
Key Differences
Unique to SHLP2:
Unique to Thymalin:
Which Has Stronger Evidence?
- Anti-Aging & Longevity: Thymalin has stronger research support.
| Goal | SHLP2 | Thymalin |
|---|---|---|
| Anti-Aging & Longevity | low | medium |
Key Studies
SHLP2
- Mitochondrial Peptide SHLP2 Limits Poly(I: C)-Induced Alveolar Epithelial Injury by Modulating Redox, Apoptotic, Inflammatory, and Inflammasome Responses.
Cytotechnology, 2026
- SHLP2 restores pre-osteoblastic cells against oxidative stress-induced inflammaging.
Scientific reports, 2025
- SHLP2 alleviates allergic asthma by inhibiting ETV5/GSDMD signaling pathway-mediated pyroptosis.
Cellular signalling, 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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