Livagen: what it is and what the evidence says
A tetrapeptide proposed for the liver and for chromatin activation.
Last reviewed: August 16, 2026 · How we verify this
The ground it plays on
Two very different things live under the same label here: serious research into mitochondria, cellular senescence and DNA repair, and a market of promises built on studies that were never replicated. Telling them apart is most of the work, and this is the area where it matters most to look at who signed each study.
What it is studied for
Advertised for liver function.
There is a distinction that almost always gets lost. A compound being studied for something is not the same as achieving it. And even where it works in a dish or in a mouse, that says little about whether it works in a person or whether the benefit is worth the risk. The section below therefore carries more weight than everything above it.
What the human evidence says
There are no clinical trials. What is cited as 'human evidence' consists of experiments on lymphocytes and serum obtained from older people and treated IN THE TEST TUBE. That is not the same as a demonstrated clinical benefit.
The limitation that matters most
The entire output comes from the same group, mostly in Russian and without external replication. None of the studies measures real outcomes (liver function, morbidity, survival) in treated people. Its promotion as a 'liver regenerator' is an extrapolation from cell cultures.
Regulatory status
Not approved by any Western agency.
Status can change and varies by country. Always verify the rules in force where you live before drawing conclusions.
Cautions and context
What is cited as human evidence consists of test-tube experiments on cells from older people.
Jaundice, fatigue that will not lift or abnormal liver enzymes on a blood panel are questions for a hepatologist long before they are questions for a peptide with this much backing.
What this page cannot give you
A reference page can take you this far. You know what Livagen is and where its research stands, which already puts you ahead of most readers. Four questions remain that no encyclopedia can answer for you, because the answers depend on your own situation:
- What would you measure beforehand, so that later you could tell whether anything actually changed?
- What would you watch along the way, and how consistently?
- What would you ask a professional, and in how much detail, so you do not walk out with a textbook answer?
- What would make you stop?
That is what the course is for
PeptiXtreme is ${CIF.LECCIONES} lessons that hand out no numbers. Each one ends with your starting point, what to watch along the way, the specific questions you take to a professional and the signals that mean stop. It includes per-module exams, a diploma with a verifiable folio, a record to track how you progress, and a human advisor you can actually write to.
See the course → Or measure your judgment, freeReferences
Every entry links to its record on PubMed, the US National Library of Medicine database. Open them and check. We would rather have a reader who verifies than one who takes our word for it.
- Effects of Livagen peptide on chromatin activation in lymphocytes from old peoplehuman Bull Exp Biol Med · 2002 · PMID 12533768 →
- [Effect of new peptide bioregulators livagen and epitalon on enkephalin-degrading enzymes in human serum]preclinical Izv Akad Nauk Ser Biol · 2003 · PMID 12942748 →
- [Functional morphology of an organotypic liver culture exposed to the peptide livagen]preclinical Adv Gerontol · 2002 · PMID 12577697 →
- Effects of short peptides on lymphocyte chromatin in senile subjectshuman Bull Exp Biol Med · 2004 · PMID 15085253 →
- Tissue-specific effects of peptidespreclinical Bull Exp Biol Med · 2001 · PMID 11713572 →
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Frequently asked questions
What is Livagen?
A tetrapeptide proposed for the liver and for chromatin activation. It is studied within the area of longevity/cellular.
Is there human evidence for Livagen?
There are no clinical trials. What is cited as 'human evidence' consists of experiments on lymphocytes and serum obtained from older people and treated IN THE TEST TUBE. That is not the same as a demonstrated clinical benefit.
Is it approved by any health agency?
Not approved by any Western agency.
What is the dose of Livagen?
We do not publish dosages. This is not an oversight. No single figure works for everyone: the regimen depends on a person's medical history, on whatever medication they already take, and on the goal they are chasing, which is something a professional weighs with the case in front of them. What you can build is the ability to walk into that appointment knowing what to ask.
Where can I learn to evaluate this properly?
This page tells you what Livagen is and what the evidence says. The PeptiXtreme course teaches the other half: what you would measure before considering anything, what you would watch, the specific questions you would take to a professional and when you would stop.