Livagen

Liver & immune system Research only Animal studies Synthetic short peptide (Cytogen)

Also called KEDA peptide

A four-amino-acid Khavinson peptide associated with the liver, gut and immune cells. In lymphocytes from older adults it loosened tightly packed DNA (chromatin), which is proposed to switch back on genes that go quiet with age.

Evidence at a glance

Evidence
Animal studies — Not yet studied in people
Status
Research compound only
Dosing
No human study has set a dose

Cell culture only, one group.

What studies report

How it works

A Khavinson short peptide: at two to four amino acids it is small enough to pass through cell and nuclear membranes intact. The proposed mechanism is that it binds specific sites on nuclear DNA and changes which genes are switched on in its target tissue, rather than acting on a surface receptor the way most peptides do.

Small enough to pass through and act on DNA in the nucleus

Where it acts

Liver

The library groups this compound under Liver & immune system. The diagram shows that target, not every tissue it reaches.

Illustrated

AI-generated subject illustration; not a depiction of the compound or evidence of its effects.

Why people take it

Liver supportImmune and gut functionAge-silenced gene activity

Reasons people seek it out — not a list of proven effects.

Status: Cell-culture data, mostly from one research group.

Route
Subcutaneous injection, or oral capsule depending on the preparation
Sequence
Lys-Glu-Asp-Ala
Formula
C18H31N5O9
Molecular weight
461.5 g/mol
CAS
195875-84-4
Available as
20 mg
View on PubChem →

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Educational information only. Nothing here is medical advice, a dosing protocol, or a recommendation to use any compound. Most entries describe substances not approved for human use. Talk to a licensed clinician before acting on anything you read here. How to read these entries.