Epithalon vs Testagen
Comparison of Epithalon (Low evidence) and Testagen (Low evidence).
Last updated: February 12, 2026
Epithalon
Testagen
Overview
Epithalon and Testagen are both studied in the peptide research space.
Epithalon: A synthetic tetrapeptide (Ala-Glu-Asp-Gly) developed by Russian scientist Vladimir Khavinson, claimed to activate telomerase and extend lifespan.
Testagen: A synthetic tripeptide developed by Russian scientist Vladimir Khavinson, claimed to support testicular tissue and modulate Leydig cell function.
Evidence Comparison
| Aspect | Epithalon | Testagen |
|---|---|---|
| Evidence Level | Low | Low |
| Human Studies | 5 | 2 |
| Preclinical Studies | 15 | 8 |
| Total Sources | 28 | 12 |
Key Differences
| Aspect | Epithalon | Testagen |
|---|---|---|
| Category | Longevity | Hormonal |
| Evidence Strength | Low | Low |
| Total Sources | 28 | 12 |
| Human Studies | 5 | 2 |
Summary
- Epithalon: Low evidence with 28 total sources (5 human)
- Testagen: Low evidence with 12 total sources (2 human)
This comparison is for educational purposes only and is not medical advice. Consult a healthcare professional before making any decisions about peptide use.
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Disclaimer: This comparison is for educational purposes only and does not constitute medical advice. Individual responses to medications vary. Always consult a qualified healthcare provider before making treatment decisions.