Name: Testagen 20mg (10 Vials / Kit)
Brand: SSRBIO
SKU: SSR-TESTAG
Price: 92.25 USD
Availability: InStock

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 SSRBIO, shipped from China. The price is $92.25, or $0.461 per milligram of peptide. Of the 3 Testagen listings on the marketplace, from 3 brands, this is the lowest price per mg. Funds stay in escrow and are released to SSRBIO only when you mark the order as received.

This listing: SSRBIO Testagen

Brand: SSRBIO
Kit: 10 vials × 20 mg (200 mg in total)
Price per vial: $9.23
Price per mg: $0.46
Also sold by: TFC Peptides 20mg $110.00 · Uther Peptide 20mg $150.00

Lab testing

There is no public lab report for this listing yet. We can ask the brand for the batch COA before you order. Many buyers also split an independent HPLC test with others who bought the same batch.

Request the batch COA · How group testing works

Bought through escrow: the brand is only paid after you confirm delivery. If the parcel never arrives, or an independent test shows the wrong compound or a significant under-fill, open a claim before releasing payment.

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: $0.461
Sold by: SSRBIO
Ships from: China
Lab report: Not yet published

Storage and preparation

Keep unopened freeze-dried vials cold, sealed and out of the light; moisture is what degrades a lyophilized cake fastest. After reconstitution, refrigerate the solution and work within the stability window your protocol sets.

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

Why is Testagen grouped with Vesugen and Livagen?

All three are built on the same Lys-Glu-Asp backbone. Vesugen is that tripeptide alone, Livagen adds alanine and Testagen adds glycine. Within the bioregulator program, each small change in sequence is associated with a different target tissue, though the basis for those associations comes almost entirely from the developers' own studies.

Does Testagen have any regulatory status?

It is not approved as a drug by the FDA or the European Medicines Agency. Some short bioregulator peptides are marketed as supplements in Russia and nearby countries, but that does not reflect clinical evaluation. Here it is listed only as research material, and buyers should rely on independent lab reports to confirm what each vial contains.

How much Testagen is in this listing?

10 vials of 20mg each — 200 mg in all. Where a lab report exists, the testing panel above shows what the brand's tested sample actually measured.

What if the parcel never arrives?

Open a claim from your order page. The payment is still in escrow at that point, so a claim decided in your favour is refunded to your Escrow Wallet.

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.