Epithalamin vs Thymulin

A detailed comparison to help you understand the differences and choose the right peptide for your research goals.

Epithalamin

Epithalamin is a natural peptide extract from the pineal gland. It is the precursor compound from which the synthetic Epitalon was derived. Known for anti-aging and telomerase-activating properties.

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Thymulin

Thymulin (Facteur Thymique Sérique) is a zinc-dependent nonapeptide hormone produced by thymic epithelial cells. It plays important roles in T-cell differentiation and immune system maturation.

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Side-by-Side Comparison

AspectEpithalaminThymulin
MechanismSimilar to Epitalon, it stimulates telomerase production and may help maintain telomere length. Also regulates melatonin synthesis and circadian rhythms.Requires zinc for biological activity. Promotes T-cell differentiation, modulates cytokine production, and influences neuroendocrine function. Levels decline significantly with age.
Typical DosageResearch dosing: 10-20mg daily for 10-20 day cycles. Often administered 1-3 times per year in long-term protocols.Research protocols vary. Often studied alongside zinc supplementation. Typical research doses in the microgram range.
AdministrationIntramuscular or subcutaneous injection. Natural extract may have more variable composition than synthetic Epitalon.Subcutaneous or intramuscular injection in research settings. Requires adequate zinc status for activity.
Side EffectsGenerally well-tolerated. May affect sleep patterns. Less characterized than synthetic Epitalon.Limited data on exogenous administration. Theoretical effects on immune function require monitoring.
Best For

What They Have in Common

Both Epithalamin and Thymulin are commonly used for:

Key Differences

Unique to Epithalamin:

Unique to Thymulin:

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