Livagen (Bioregulator) from Xcel Peptides

Xcel Peptides supplies Livagen as a lyophilized bioregulator peptide for laboratory use. We test every batch independently before release, and we publish the certificate of analysis on this page, matched to the batch number on your vial.

What Is Livagen

Livagen is a synthetic tetrapeptide made of four amino acids: lysine, glutamic acid, aspartic acid, and alanine (Lys-Glu-Asp-Ala, or KEDA). Its molecular formula is C18H31N5O9, and its molecular weight is about 461.5 g/mol. It belongs to the short-peptide bioregulators developed by Vladimir Khavinson and colleagues in Russia, which were designed to match small peptide fractions associated with specific tissues. Early studies examined it in rat liver cell cultures.

Specifications

The product is a lyophilized powder at research grade. We verify every batch through third-party HPLC and identity analysis, and we document it with a matched COA. Store the powder frozen and protect it from light. We ship every order cold-chain with tracking.

Research Applications

Researchers study Livagen in chromatin biology and gene expression research. Typical work examines how the KEDA sequence affects chromatin structure and accessibility in lymphocyte cultures, and how it influences protein synthesis and gene expression in cultured cells from different age groups. Scientists also use it as a reference peptide when comparing Khavinson-class bioregulators.

These describe research applications, not therapeutic claims. The FDA has not evaluated this product, and researchers should not use it to diagnose, treat, cure, or prevent any condition.

Why Buy Livagen From Xcel Peptides

Sequence errors are common in this category, and suppliers sometimes list different residues under the same bioregulator name. Xcel Peptides lists the exact sequence for Livagen and tests each batch to confirm identity, so your records match the material you receive.

We also publish our results openly. You can match the batch number on your vial to the COA before you start work, instead of relying on a generic purity claim.

Storage and Handling

Store the lyophilized vial frozen and protected from light before reconstitution. Once reconstituted, refrigerate the solution and use it within a short window, since peptide stability drops considerably outside the dry state. Avoid repeated freeze-thaw cycles, since each cycle degrades the peptide structure further.

Verifying Your COA

Check three things on the COA before you use this product. First, confirm the batch number matches your vial. Second, confirm the test date is recent. Third, confirm the HPLC purity and the identity result match the KEDA sequence and the 461.5 g/mol mass for your size. If you need archived data for a previous lot, contact our team and we’ll pull it for you.

Disclaimer (place directly under description): Xcel Peptides supplies Livagen (Bioregulator) for laboratory and research use only. It is not a drug, dietary supplement, or food, and researchers should not use it for human or animal consumption, or for diagnostic or therapeutic use. Nothing on this page constitutes medical advice.

Frequently Asked Questions

What is Livagen? It’s a synthetic tetrapeptide (Lys-Glu-Asp-Ala) from the Khavinson family of short-peptide bioregulators. Xcel Peptides supplies it as a research-grade lyophilized peptide.

Is Livagen the same as Epitalon? No. Livagen is the tetrapeptide KEDA, while Epitalon is the tetrapeptide AEDG. Both are Khavinson peptides of similar length, which is why people often compare them.

What is a bioregulator peptide? It’s a short peptide, usually two to four amino acids, designed to match a fraction isolated from a specific tissue. Researchers study how these peptides affect gene expression in cell models.

Does Livagen come with a COA? Yes. Xcel Peptides ships every vial with a batch-matched certificate of analysis confirming identity and purity.

How should I store Livagen? Store the lyophilized powder frozen and protected from light. After reconstitution, refrigerate the solution and avoid repeated freeze-thaw cycles.

How fast does Xcel Peptides ship this product? We ship most orders within 1 to 2 business days, with cold-chain packaging and tracking included.