Encyclopedia · Bioregulators

Livagen

Evidence review

Evidence grade D

Evidence is primarily preclinical and often concerns a related molecule rather than the marketed name itself.

Reviewed Aug 10, 2026 3 linked authoritative sources

Livagen is the tetrapeptide KEDA, marketed as a liver “bioregulator.” It has no FDA-approved product, liver indication, or dose.

What Livagen is

Livagen is the tetrapeptide KEDA, marketed as a liver “bioregulator.” It has no FDA-approved product, liver indication, or dose.

Human-derived cells are not a human treatment trial

Studies exposed lymphocytes from older people to Livagen and measured chromatin changes.[1] Other work examined rat hepatocyte cultures and organotypic liver cultures.[2] These findings do not establish improved liver enzymes, fibrosis, fatty-liver disease, hepatitis outcomes, detoxification, or longevity in people.

Safety is unknown

Human absorption, metabolism, adverse events, interactions, liver-injury risk, pregnancy use, and long-term safety are undefined. A substance marketed for “liver support” can still delay diagnosis or conflict with established care.

Regulatory status

Livagen is unapproved in the United States. Compounded drugs are not FDA-approved or premarket-verified for safety, effectiveness, or quality.[3] Teloryx publishes no dose or preparation protocol.

Evidence review

Sources and evidence

Citation numbers in the article link to the exact regulator records, trial registrations, and publications reviewed.

  1. Bulletin of Experimental Biology and MedicineLivagen and chromatin activation in lymphocytes from older people (2002)
  2. Bulletin of Experimental Biology and MedicineProtein synthesis in rat hepatocyte cultures after Livagen exposure (2001)
  3. U.S. FDAUnderstanding the risks of compounded drugs (2026)