Livagen 20mg (10 Vials / Kit)

Livagen at a glance

Livagen, or KEDA, is a synthetic tetrapeptide of lysine, glutamic acid, aspartic acid and alanine. The St. Petersburg group led by Vladimir Khavinson designed it with reference to peptide fractions taken from liver tissue, and in their classification it is a hepatic bioregulator. The earliest bioregulators in that program were crude organ extracts; Livagen is one of the later, defined synthetic sequences intended to capture part of that activity with a known structure.

Price and availability

Sold by TFC Peptides and sent from Tianjin, China, this listing is a kit of 10 vials at 20mg each (200 mg in total). At $110.00 for the kit, that works out to $0.55 per mg. Of the 3 Livagen listings on the marketplace, from 3 brands, this is the lowest price per mg. Checkout goes into escrow first; the funds move to TFC Peptides once delivery is confirmed.

What it is studied for

The most cited work on Livagen concerns chromatin. Researchers in the originating group reported that it loosens tightly packed heterochromatin in lymphocytes taken from older donors, which in their experiments appeared to reactivate genes that are usually silenced with age. They propose the peptide binds DNA or histones directly. Other reports from the same network describe effects on liver enzyme activity in animals. No receptor has been identified, and the direct-binding model has not been tested independently.

Research and regulatory status

Evidence consists of cell-culture studies of chromatin structure and animal experiments on liver function and aging markers. Nearly all of it comes from one research network, much of it in Russian-language journals, and independent replication is minimal. There are no controlled human trials and no approval as a medicine. Livagen is best viewed as an exploratory research peptide whose proposed mechanism still needs outside confirmation.

Checking the lab data

Livagen's identity should be confirmed by mass spectrometry matching Lys-Glu-Asp-Ala, which also separates it from Vesugen, the related tripeptide without the alanine. Sequence confirmation is a plus, since peptides with the same residues in a different order share the same mass. Look for HPLC purity with a chromatogram, measured content per vial, a white freeze-dried cake and a certificate that names the KEDA sequence and batch explicitly.

This listing has no third-party report on file yet. The lab reports directory and the marketplace show which brands do publish testing.

Listing details

Compound

Livagen

Synonyms

KEDA peptide (Lys-Glu-Asp-Ala)

Class

Synthetic tetrapeptide bioregulator

Format

Lyophilized (freeze-dried) powder

Vial strength

20mg

Vials per kit

10

Total content

200 mg

Price per mg

$0.55

Sold by

TFC Peptides

Ships from

Tianjin, China

Lab report

Not yet published

Storage and preparation

Freeze-dried peptide keeps best sealed, cold and dark. Once it has been dissolved, refrigerate it, avoid repeated warming and follow the stability limits in your study protocol.

Concentration arithmetic: one 20 mg vial dissolved in 2 mL gives 10 mg/mL, or 20 mg/mL in 1 mL. The Research Lab calculator in your dashboard handles any other volume.

Buyer questions

Supplied for laboratory research only. Not for human or veterinary use, and not a substitute for any prescription medicine. Nothing on this page is medical advice.