Testagen 20mg (10 Vials / Kit)

Testagen at a glance

Testagen, also called the KEDG peptide, is a four-residue chain of lysine, glutamic acid, aspartic acid and glycine. It belongs to the short bioregulator series developed at Vladimir Khavinson's institute, where each sequence is assigned to an organ, and Testagen is the one assigned to the testes. It shares a Lys-Glu-Asp core with Vesugen, Livagen and Prostamax. Despite the name, Testagen is a peptide, not a steroid or gonadotropin, and it is supplied as freeze-dried powder.

Price and availability

A kit of 10 vials at 20mg each (200 mg in total) from TFC Peptides, shipped from Tianjin, China. At $110.00 for the kit, that works out to $0.55 per mg. 3 brands currently sell Testagen here, so compare their listings before ordering. Funds stay in escrow and are released to TFC Peptides only when you mark the order as received.

What it is studied for

The originating group proposes that short peptides such as Testagen interact with DNA or histone proteins to influence chromatin structure and gene expression in their target tissue. That idea has not been confirmed by independent laboratories, and no hormone receptor for Testagen has been identified. It is not expected to act like testosterone, an androgen, or like hCG and LH, which signal through gonadotropin receptors. In short, the mechanism remains a hypothesis tied to one research tradition.

Research and regulatory status

Published studies are few, preclinical and drawn mainly from the developers' network, with little independent replication. There are no registered controlled human trials, and Testagen is not approved as a medicine. Researchers who need well-characterized tools for reproductive endocrinology typically turn to molecules with deeper literatures, such as kisspeptin, gonadorelin or hCG, so Testagen sits at the exploratory edge of the field.

Checking the lab data

For Testagen, identity is the main question. Mass spectrometry should match the Lys-Glu-Asp-Gly tetrapeptide, and because Epitalon (Ala-Glu-Asp-Gly) differs only at its opening residue, the mass result separates the two cleanly. HPLC purity with its chromatogram and measured content per vial should be included. Check that the certificate names the KEDG sequence explicitly rather than only the product name, and that the white freeze-dried cake and batch number match the listing.

No independent report is attached to this listing yet. You can compare brands that publish one on the marketplace or browse the lab reports directory.

Listing details

Compound

Testagen

Synonyms

KEDG peptide (Lys-Glu-Asp-Gly)

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.