Livagen, product photo
Bioregulators

Livagen

Khavinson bioregulator for the liver. Tripeptide with research application in hepatocyte aging models.

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At a glance

Livagen by the numbers

The key figures from our lexicon.

Full lexicon entry
Class
Short bioregulator peptide

Khavinson cytogen

Use
Subcutaneous

in mg

Sizes
20 mg

1 size in the shop

For research and educational purposes only. Values from the TPD lexicon, sources linked there.

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Knowledge

Everything about Livagen

Description

Livagen (Lys-Glu-Asp) is a synthetic tripeptide of the Khavinson bioregulator class with tissue-specific action on liver tissue. The substance was developed at the St. Petersburg Institute for investigating age-related liver function changes.

Per study reports Livagen modulates gene expression in hepatocytes via the Khavinson epigenetic mechanism. Preclinical studies describe effects on liver markers (ALT/AST normalization), albumin synthesis and age-related hepatic aging indicators.

In Russian research literature Livagen is described in aging hepatology setups and as supportive compound in toxically-burdened research setups. International replication remains limited.

Typical application is subcutaneous in 10-20 day courses two to three times per year.

You can order Livagen as lyophilized peptide in 10-pack at 20mg per vial.

This information is for research and educational purposes only. No medical recommendations.

Risks & Safety

Livagen is classified as very mild in the available literature and is among the most well tolerated compounds of the Khavinson bioregulator class. In the available preclinical and limited human studies, no relevant toxic effects have been documented.

Observed in research and reports:

  • Injection site: mild redness or transient irritation with subcutaneous use is the most common observation. The tripeptide itself is considered low-reactivity.
  • Very thin human data: the data base consists almost entirely of small, Russian-language studies from the Khavinson environment. International replication remains limited. Robust long-term safety data on hepatic use do not exist.
  • Course-based pattern: the use described occurs in short 10-20 day courses. No data exist on the safety profile of continuous administration.

This classification does not replace medical advice. Risk and responsibility for any actual use lie entirely with the buyer.

Studies

Good to have

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Insulin Syringes

10 pcs · 5.50 €

Alcohol Swabs

50 pcs · 10 €

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FAQ

Frequently asked

Sources for every answer: lexicon entry

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Is Livagen approved or studied in humans?

No. ClinicalTrials.gov lists no trial with Livagen (as of 26 October 2026). PubMed has 19 records, almost all from Russian and Georgian groups around Khavinson and mostly in Russian journals. Large independent studies are missing.

What exactly is Livagen?

A synthetic tetrapeptide made of lysine, glutamic acid, aspartic acid and alanine. It was designed from the amino acid composition of peptide extracts from the liver. According to the Khavinson concept such short peptides act specifically on one tissue, here the liver.

What do the cell studies on chromatin show?

In lymphocytes from old people Livagen loosened the tightly packed heterochromatin in cell culture and activated the genes for ribosomes. In a comparison with blood cells from people aged 75 to 88, other short peptides such as Epitalon did the same. The authors interpret this as reactivating silenced genes; it was only measured in the lab.

What is known about the liver?

In liver cell cultures from rats aged 1 to 24 months Livagen increased protein synthesis, most strongly in cells from old animals. Epitalon changed nothing there. A Russian review from the same line of research describes liver-protective effects in animal models. This has not been tested in humans.

What does Livagen have to do with enkephalins?

Enkephalins are the body's own opioid peptides. In a lab test Livagen inhibited the enzymes in human serum that break them down about 25 times more strongly than Epitalon. It did not bind to the opioid receptors themselves. Whether this matters in the body is open.

Which side effects are known?

There are no solid data because Livagen has never been tested in a registered human trial. The published work consists of cell and tissue experiments, which allow no statement on safety in humans.

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