Epitalon vs Pinealon
Epitalon (Synthetic tetrapeptide (pineal bioregulator)) and Pinealon (Short synthetic peptide bioregulator (tripeptide)) are documented as co-studied in the PeptiDex library. This page puts the two entries side by side on class, molecular weight, half-life, origin, mechanism and studied research areas — every value taken from the entry it belongs to.
Why these two are co-studied
Cross-referenced for research context — not a usage or combination recommendation.
At a glance
| Attribute | Epitalon | Pinealon |
|---|---|---|
| Compound class | Synthetic tetrapeptide (pineal bioregulator) | Short synthetic peptide bioregulator (tripeptide) |
| Research category | Longevity & Cellular | Cognitive & Nootropic |
| Length (amino acids) | 4 amino acids | 3 amino acids |
| Molecular weight | 390.35 g/mol | 418.4 g/mol |
| Half-life | Not documented | Not documented |
| Origin | Epitalon (also spelled Epithalon) is a synthetic tetrapeptide developed in Russia by Vladimir Khavinson and colleagues, designed as a short-peptide analog derived from studies of the pineal extract Epithalamin. It emerged from Russian peptide bioregulator research aimed at tissue-specific regulatory peptides. | Pinealon is a synthetic short peptide (peptide bioregulator) developed within the Russian school of peptide bioregulator research associated with the St. Petersburg Institute of Bioregulation and Gerontology. |
“Not documented” means the PeptiDex entry records no value for that field. Nothing on this page is estimated, and no figure is carried over from one compound to the other.
How Epitalon works
Epitalon is proposed to act as a peptide bioregulator influencing gene expression and pineal function. Reported preclinical mechanisms include modulation of the pineal gland and melatonin regulation, and studies have described effects on telomerase activity and telomere length in cultured human cells. The precise molecular mechanism in vivo is not fully established, and much of the mechanistic data comes from cell-culture and animal models.
How Pinealon works
Pinealon is a short peptide reported in the Russian bioregulator literature to have neuroprotective and gene-regulatory effects, with proposed activity related to modulation of gene expression in neuronal cells. Its detailed molecular mechanism is not well established outside of this research tradition, and independent Western validation is limited.
Mechanistic descriptions reflect published research-literature understanding and are quoted from each compound's own entry. Much peptide research is preclinical (in-vitro or animal-model); mechanism in humans may differ and is not established for many compounds.
Where each one appears in the literature
The research contexts each entry documents. Listing a research area is not a claim of efficacy or a therapeutic indication, and the two lists are not scored against each other.
Epitalon
Pinealon
What sets each apart
Epitalon
Epitalon is a defined 4-amino-acid pineal bioregulator peptide, distinct from thymic peptides (immune focus) and mitochondrial peptides, with a research emphasis on telomere/telomerase biology.
Pinealon
Pinealon belongs to the ultra-short peptide bioregulator category, unlike the longer or growth-factor-derived peptides elsewhere in this class.
Frequently asked questions
What is epitalon and what is it studied for?
Epitalon (epithalon) is a synthetic tetrapeptide, Ala-Glu-Asp-Gly, modeled on the pineal peptide epithalamin. It is studied in aging research for reported effects on telomerase activity, telomere length, circadian/melatonin regulation, and antioxidant markers, largely in older Russian experimental programs and cell/animal models.
What is the sequence and molecular weight of epitalon?
Epitalon is the tetrapeptide Ala-Glu-Asp-Gly (AEDG), with molecular formula C14H22N4O9 and a molecular weight of about 390.35 g/mol. Its short four-residue length is one reason it is thought to have a very brief systemic half-life.
How is epitalon cycled in research protocols?
Reported research and community protocols use short cycles rather than continuous dosing, commonly a 10-20 day course repeated once or twice per year. Cycling reflects the older Russian research design of intermittent short courses rather than daily long-term administration.
What is Pinealon (EDR)?
Pinealon is a synthetic tripeptide with the sequence Glu-Asp-Arg (EDR), part of the Khavinson family of short peptide bioregulators developed in St. Petersburg. It is studied in preclinical models for neuroprotective and gene-regulatory effects on neuronal cells.
What is the proposed mechanism of Pinealon?
Ultra-short peptides like Pinealon are hypothesized to act not through cell-surface receptors but by penetrating cells and interacting with DNA regulatory regions to modulate gene expression. In preclinical reports EDR is described as activating expression of proteins that support neuronal function and reducing apoptosis.
What is a peptide bioregulator?
Peptide bioregulator is the term used by the Khavinson research group for very short peptides (typically two to four amino acids) proposed to regulate tissue-specific gene expression. This framework is described in their published reviews, though it remains outside mainstream mechanistic consensus and rests largely on their own body of work.
Answers are the ones published on each compound's own PeptiDex entry. They are educational summaries of research-literature context and are not medical advice.