Epithalon (also spelled epitalon; sequence Ala-Glu-Asp-Gly, “AEDG”) is a synthetic tetrapeptide derived from epithalamin, a pineal-gland extract studied extensively by Russian gerontology researchers from the 1980s onward. At only four residues it is one of the smallest peptides in common research catalogs, which has practical consequences for its synthesis cost, purity ceiling, and analytical profile.
Research background
The preclinical literature around epithalon concentrates on telomerase activity, pineal function, and circadian biology in cell culture and animal models. It is frequently cited in the “peptide bioregulator” line of research associated with the St. Petersburg Institute of Bioregulation and Gerontology. As with much of that literature, study designs and endpoints vary widely — researchers reviewing it should weigh the original sources rather than secondary summaries.
Analytical characteristics of a short peptide
Because epithalon is a tetrapeptide, solid-phase synthesis involves few coupling steps and high-purity material is easier to achieve than with long chains like tesamorelin or retatrutide. On an HPLC trace, a quality lot presents a dominant single peak; the certificate should report chromatographic purity, identity confirmation against a reference, and net peptide content per vial. Small peptides also carry proportionally more counter-ion and water by mass, which is why net peptide content and purity are separate line items on a proper certificate.
Verifying a lot
Heartland Bio Labs publishes independent laboratory certificates for tested lots in the COA portal — search the product name to read transcribed results with the original lab PDF attached. Certificates for earlier lots are retained, so material bought previously stays verifiable.
Handling notes
Lyophilized epithalon is stored cold, dry, and away from light. Short peptides are comparatively robust as powders; reconstituted solutions are prepared fresh in laboratory practice.
Frequently asked research questions
Is epithalon the same as epithalamin?
No — epithalamin is the natural pineal extract; epithalon is the synthetic tetrapeptide designed to reproduce its studied activity in research models.
What strengths are typical?
Research vials are commonly offered at 10 mg and 50 mg of lyophilized peptide.
All compounds discussed are for laboratory research use only and are not for human consumption. Nothing here is medical advice or a statement of clinical effect.
Product page: Epithalon.