Epithalon

EPITHALON 10MG provides Epithalon as lyophilized powder in a 3 mL vial. The specification table summarizes the named compound and catalog presentation.

Epithalon: a synthetic tetrapeptide from pineal gland research

Epithalon is a synthetic tetrapeptide composed of alanine, glutamic acid, aspartic acid and glycine, written Ala-Glu-Asp-Gly and often shortened to the AEDG peptide. Each amino acid in it is common, and the chain is far too short to fold like a protein. It came out of the St Petersburg Institute of Bioregulation and Gerontology, where Professor Vladimir Khavinson's group worked on pineal gland extracts through the 1970s and 80s. The original preparation, epithalamin, was a crude extract. Epithalon is the short peptide they synthesized to replace it, and the molecular formula C14H22N4O9 covers four residues and nothing else. This vial holds 10 mg for laboratory research.

Telomerase activity and telomere length in human cells

The best-known work is in cell cultures. Khavinson's group added the peptide to human somatic cells, including fetal fibroblasts, and reported higher telomerase activity, which they attributed to upregulated hTERT expression [1]. Telomeres are the protective caps on the ends of chromosomes, and they shorten each time a cell divides until the cell hits its division limit. In those cultures the researchers found telomere elongation of roughly a third, and treated human cells kept dividing past 44 passages, beyond the usual limit. They also reported fewer chromosome aberrations.

Telomere maintenance is why the peptide remains interesting to anyone studying aging processes at the cell level. It's also the reason for the main safety question. Cancer cells rely on telomerase to divide without limit, so a compound that raises it anywhere raises an obvious concern, and that concern hasn't been resolved.

Animal studies: can it extend lifespan?

Anisimov and colleagues ran the peptide regulation experiments in rodents [2]. In female rats and in mice, epitalon treatment was reported to extend lifespan, with figures around a third longer in some groups, and the papers describe a normalizing effect on age related changes rather than a single mechanism. Rats subjected to continuous light, which disrupts their biology, fared better than controls. Reports of antioxidant properties and fewer chromosomal aberrations come from the same body of work. In several of these animal studies epitalon reduced markers of oxidative damage, and the peptide epitalon has also been investigated in a rat model of retinitis pigmentosa.

Spontaneous tumors are where the animal record gets complicated. Some studies reported fewer than in the control group, and others reported more in particular strains, which is what you'd expect of a compound touching telomerase. The epithalon peptide's ability to shift tumor rates in either direction is the part most worth testing next. Results vary significantly between models, and that variation deserves further investigation rather than a headline.

Melatonin synthesis and circadian regulation

The pineal gland makes melatonin, and output falls with age. Korkushko's group reported that epitalon increased melatonin synthesis and restored a more normal melatonin rhythm in older adults, with similar findings in aged monkeys [3]. Work in pineal cells and on circadian gene expression followed. If the peptide does influence circadian regulation, that would connect it to sleep architecture, which is one of the more testable claims attached to it. The melatonin data are the strongest human signal present in this literature.

Anti aging claims and what the evidence supports today

Epithalon shows up constantly in anti aging and longevity medicine marketing, usually next to other longevity interventions and other peptides, with talk of reset biomarkers and reversed aging. Here is the state of the research conducted so far. Nearly all of it comes from one institute in Russia. The human work was small and usually unblinded, including the studies reporting lower mortality in elderly patients. Independent groups outside that network have rarely replicated the telomerase findings, and no large trial has combined them with modern biomarkers. Long-term safety data are limited, and the cancer question remains open.

So the honest summary: Epithalon is a research compound with interesting cell-culture findings and thin clinical evidence. It's not FDA-approved for any indication, no trial has shown it extends human life span, and claims to that effect outrun what has been published.

Research use and regulatory status

Epithalon is supplied here for laboratory research. Online sources describe it being administered subcutaneously in courses under physician supervision, with baseline laboratory testing and ongoing monitoring, but that describes a clinical setting in another country and is not what this product is. No dosing, schedule or administration guidance appears on this page, and the material is not intended for therapy, for patients, or for any use in people.

Quality testing and storage

COA-pep manufactures in a cGMP facility in Shenzhen, China. Each batch goes to an ISO/IEC 17025 accredited US lab for purity (HPLC), quantity, identity (LC-MS), endotoxins, heavy metals and sterility testing. A four-residue peptide is easy to get wrong and easy to verify, so check the lot report. When you order Epithalon, match the QR code on the vial to its report in the COA Library. Lab Testing covers the full panel. Keep vials sealed, cold and out of the light.

For related bioregulators, see Cartalax and Pinealon, both from the same research tradition.

Questions researchers ask

How would four amino acids affect gene expression?

Khavinson's proposal is that very short peptides enter the cell, reach the nucleus and bind specific DNA sequences in gene promoters, changing gene expression in a tissue-specific way. Two of Epithalon's four residues carry negative charges, which the model leans on. Groups outside that network haven't widely tested it, so treat the mechanism as a hypothesis.

How do labs measure telomerase activity?

The standard method is the TRAP assay, which amplifies telomere repeats added by the enzyme in a cell extract. Telomere length itself is measured separately, by qPCR or Southern blot. Both are sensitive to how the cells were cultured, which matters when comparing results against published work.

Why does telomerase activation raise a cancer concern?

Most normal cells switch telomerase off and stop dividing once telomeres run short, and that limit is one brake on tumor growth. Most cancers reactivate telomerase to get around it. Anything that raises telomerase activity therefore needs cancer endpoints in its safety studies, and Epithalon's are incomplete.

What would independent replication look like?

The first step is simple: another lab, with no connection to the original institute, running the fibroblast experiments with blinded analysis and publishing in an English-language journal. Animal lifespan studies would need matched controls and defined endpoints. Neither has happened at scale.

How does Epithalon differ from epithalamin?

Epithalamin is a crude pineal gland extract containing many peptides, while Epithalon is one defined four-residue sequence. Results from the extract don't automatically carry over, since the extract contains components the tetrapeptide doesn't.

Disclaimer

For laboratory research use only. Not for human or veterinary use. Not for consumption. This product is not a drug, food or cosmetic. Information on this page is for educational purposes, has not been evaluated by the FDA, and is not intended to diagnose, treat, cure or prevent any disease.

References

1. Khavinson VKh, Bondarev IE, Butyugov AA. "Epithalon peptide induces telomerase activity and telomere elongation in human somatic cells." Bull Exp Biol Med. 2003;135(6):590-592. PubMed
2. Anisimov VN, Khavinson VKh. "Peptide bioregulation of aging: results and prospects." Biogerontology. 2010;11(2):139-149. PubMed
3. Korkushko OV, Khavinson VKh, Shatilo VB, Antonyk-Sheglova IA. "Peptide geroprotector from the pituitary gland inhibits rapid aging of elderly people: results of 15-year follow-up." Bull Exp Biol Med. 2011;151(3):366-369. PubMed
4. Khavinson VKh, Lin'kova NS, Tarnovskaya SI. "Short Peptides Regulate Gene Expression." Bull Exp Biol Med. 2016;162(2):288-292. doi:10.1007/s10517-016-3596-7