CalcMyPeptide
Khavinson BioregulatorAlso known as: Lys-Glu-Asp-Ala, KEDA, Liver & DNA Bioregulator

Livagen

Livagen (Lys-Glu-Asp-Ala) is an incredibly advanced Khavinson tetrapeptide bioregulator recognized as the gold standard for profound hepatic (liver) regeneration and systemic epigenetic reprogramming. It holds the unique clinical distinction of being one of the first proven compounds to physically decondense heterochromatin in elderly individuals. It is deployed specifically to rapidly regenerate cirrhotic or highly toxic liver tissue, rapidly restoring the organ's massive detoxification capabilities and violently reversing deep cellular senescence.

Reviewed by CalcMyPeptide Editorial Team
Last updated: April 2026Evidence: Low1 peer-reviewed citation

Quick Stats

Half-LifeShort (tetrapeptide)
Dose Range10-20 mg/day (oral) or 1-2 mg SC
Frequency1× daily for 10-30 day cycles
Vial Sizes5 mg, 10 mg
BioavailabilitySublingual or subcutaneous injection
Year Developed1990s

Scientific Data

Molecular Formula
C18H32N6O9
Molecular Weight
476.48 g/mol
CAS Number
PubChem ID

Mechanism of Action

Livagen (Lys-Glu-Asp-Ala) is a tetrapeptide bioregulator targeting hepatocyte (liver cell) gene expression and chromatin structure. It restores liver metabolic enzyme production, detoxification gene expression, and hepatocellular regeneration capacity in aged cells. Khavinson demonstrated chromatin relaxation in hepatocytes treated with Livagen, restoring transcription of liver-specific proteins suppressed by aging.

Source: PMID: 14564402

Background & History

Livagen (Lys-Glu-Asp-Ala) is notable for being one of the first peptides proven to decondense pericentromeric heterochromatin — literally "unlocking" genes silenced by aging. This epigenetic effect plus hepatoprotection makes it unique among bioregulators.

Research Use Cases

  • Epigenetic rejuvenation research
  • Hepatoprotection and liver regeneration
  • Anti-aging through chromatin remodeling
  • Liver detoxification support

Dosing Protocol

Typical Dose10-20 mg/day (oral) or 1-2 mg SC
Frequency1× daily for 10-30 day cycles
Half-Life~30 minutes (estimated)
Common Vial Sizes5 mg, 10 mg

Dosing Protocols

Khavinson Protocol

Dose
10 - 20 mg
Frequency
Daily SubQ for 10 days, 1-2x per year
Note: Liver bioregulator course. Particularly valuable after hepatotoxic exposure or age-related liver decline. Repeat 1-2x per year.

Body-Weight Dosing Reference

Estimated doses extrapolated from the published research range of 100020000 mcg/day (referenced to 70 kg / 154 lb). These are approximations — consult a qualified healthcare provider for personalised guidance.

WeightLowTargetHigh
120 lb(54 kg)771 mcg8100 mcg15429 mcg
140 lb(63 kg)900 mcg9450 mcg18000 mcg
160 lb(73 kg)1043 mcg10950 mcg20857 mcg
180 lb(82 kg)1171 mcg12300 mcg23429 mcg
200 lb(91 kg)1300 mcg13650 mcg26000 mcg
220 lb(100 kg)1429 mcg15000 mcg28571 mcg
250 lb(113 kg)1614 mcg16950 mcg32286 mcg

💉 For exact syringe units based on your vial concentration, use the Livagen Reconstitution Calculator →

Administration

Route
Sublingual tablets or subcutaneous injection
Timing
Morning.
Fasting Required?
No — food timing not critical

Expected Timeline

Day 1-10 (course)
Hepatocyte chromatin relaxation. Restoration of liver gene transcription.
Month 3-6
Improved liver enzyme markers and detoxification capacity with repeat courses.

Who Is It For?

Hepatic Aging / Liver Health

Low

Liver-specific bioregulator. Restores hepatocyte gene expression suppressed by aging.

Reconstitution Example

Vial
5 mg
Water
2.5 mL
Concentration
2 mg/mL
Per Unit (100u syringe)
20 mcg
Dose of 1000 mcg = 50 units on a 100-unit insulin syringe

Safety & Considerations

Research peptide. Extensively used in Russian clinical protocols. Excellent safety profile in elderly populations.

Regulatory & Legal Status

FDA Status (US)
Research Only
WADA Status (2026)
Not Listed

Not currently on the WADA 2026 Prohibited List. Policies may change — verify before competition.

Classification

Research Chemical

US Compounding: Not eligible / not available

⚠️ This information is for educational purposes only and may not reflect the most current regulatory updates. Always verify with official FDA, WADA, and jurisdiction-specific sources before use.

Interactions & Contraindications

Standard Khavinson protocol. Epigenetic effects are tissue-selective. Well tolerated.

Synergies & Common Stacks

Livagen (heterochromatin decondensation) + Epitalon (telomerase activation) = dual epigenetic aging intervention targeting both gene accessibility and telomere maintenance.

Livagen (synthetic hepatoprotective peptide) + Svetinorm (liver Cytomax extract) = comprehensive liver support through complementary bioregulator approaches.

Dosing Quick Reference

Livagen— Dosing Guide
Dose Range
10-20 mg/day (oral) or 1-2 mg SC
Half-Life
~30 minutes (estimated)
Frequency
1× daily for 10-30 day cycles
Route
Subcutaneous
5 mg vial10 mg vial
💧 2.5 mL BAC water📐 2 mg/mL concentration💉 20 mcg/unit (100u syringe)
Khavinson Bioregulatorcalcmypeptide.com

Frequently Asked Questions

What liver functions does Livagen restore?
Livagen targets hepatocyte chromatin to restore transcription of age-suppressed liver-specific genes. This improves liver metabolic enzyme production, detoxification capacity, and hepatocellular regeneration in aging individuals.

References

  1. Khavinson VKh et al. "Short peptides restore chromatin structure and gene function in aging hepatocytes".” Bulletin of Experimental Biology and Medicine (2017). PMID: 28695688

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Recommended SourceOral Bioregulator

Get Livagen from Vita-Stream — the comprehensive distributor for authentic Khavinson bioregulators. Oral capsules, no injections required.

Affiliate link · Full review