Name: Testagen 20mg (10 Vials / Kit)
Brand: TFC Peptides
SKU: TFC-TG20
Price: 110.00 USD
Availability: InStock

What is Testagen?

Testagen is one of the short peptide bioregulators developed by Vladimir Khavinson’s group in St. Petersburg, with the sequence Lys-Glu-Asp-Gly. It is the member of the family associated with the testes, sharing the Lys-Glu-Asp core seen in Vesugen, Livagen and Prostamax.

This listing is Testagen (10 vials × 20mg) from TFC Peptides (Tianjin, China), sold on Stairway to Gray with escrow: your payment is held until the order arrives and only then released to the brand.

How it is understood to work

Like its relatives, it is proposed to act on chromatin and gene expression rather than through a hormone receptor. It is not a gonadotropin or androgen, and no receptor-level mechanism has been established.

Research status

Published work is sparse and preclinical, and independent replication is very limited. Research on reproductive hormone signaling with a strong evidence base generally uses established molecules such as hCG or kisspeptin.

This listing: TFC Peptides Testagen

Brand: TFC Peptides
Kit: 10 vials × 20 mg (200 mg in total)
Price per vial: $11.00
Price per mg: $0.55
Also sold by: SSRBIO 20mg $92.25 · 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.

Specifications

Compound: Testagen
Also known as: KEDG peptide (Lys-Glu-Asp-Gly)
Class: Synthetic tetrapeptide bioregulator
Form: Lyophilized (freeze-dried) powder
Sequence: Glu-Ala-Glu
Per vial: 20mg
Units per kit: 10
Brand: TFC Peptides · Tianjin, China

Handling & storage

Supplied as a lyophilized powder; store unopened vials at -20C away from light, and keep any reconstituted solution refrigerated at 2-8C for short-term use.

Concentration check: adding 2 ml of bacteriostatic water to one 20mg vial gives 10 mg/ml. The Research Lab calculator in your dashboard works this out for any volume.

Questions

Is Testagen a hormone?

No. It is a four-amino-acid peptide with no known hormone-receptor activity, unlike hCG or hMG, which act directly on gonadotropin receptors.

How close is it to Epitalon?

Epitalon is Ala-Glu-Asp-Gly and Testagen is Lys-Glu-Asp-Gly: they differ only in the first residue, which is why mass spectrometry matters for telling them apart on a COA.

How much Testagen is in this kit?

10 vials of 20mg each. The lab testing section above shows what the brand’s tested sample actually contained, where a report exists.

For laboratory research use only. Not for human or veterinary use. Nothing on this page is medical advice.