Testagen (KEDG) — Research Peptide Bulk Supply
Also known as: Lys-Glu-Asp-Gly, KEDG tetrapeptide, Testes bioregulator peptide
Testagen (Lys-Glu-Asp-Gly) is a Khavinson tetrapeptide studied for pituitary-thyroid axis regulation and stem cell differentiation research.
Khavinson short-peptide bioregulators are listed for catalog and chromatin / gene-expression research framing only. PeptideDistro.com makes no clinical, dosage, or treatment claims.
Bulk Catalog Specifications
- Lyophilized powder
- Purity: >99% by HPLC
- Available research vial sizes: 10 mg, 20 mg
- Storage: -20°C, protect from light
- Solubility: Soluble in sterile water
- COA with HPLC and mass spectrometry data provided per lot
- Cold-chain shipping documentation available
- Private-label and white-label bulk inquiry form available
Scientific Identifiers
| Sequence | Lys-Glu-Asp-Gly (KEDG tetrapeptide) |
|---|---|
| Residue count | 4 |
| Molecular formula | TBD |
| Molecular weight | TBD |
Research Mechanism Summary
Testagen (Lys-Glu-Asp-Gly, KEDG) is a Khavinson tetrapeptide bioregulator originally isolated from testicular tissue. The peptide penetrates cellular and nuclear membranes through high-affinity binding to LAT1, LAT2, and PEPT1 amino acid transporters, then interacts directly with DNA structures via sequence recognition. In hypophysectomized avian models, KEDG prevented thyroid gland atrophy, normalized follicle morphology, and counteracted pathological changes (enlarged follicles, colloid accumulation, altered thyrocyte structure) by functioning as a hypothalamic-pituitary-thyroid axis regulatory molecule (https://biolongevitylabs.com/product/testagen-20mg/). Research by Khavinson suggests that Testagen may augment TSH secretion from the anterior pituitary through direct DNA expression modification in pituitary cells, with downstream effects on T3/T4 levels persisting even without hypophyseal support. Secondary studies indicate potential differentiation of stem cells toward immune effector lineages, relevant to aging and immunosenescence models.
For Research Use Only. Not for human or veterinary use. Page copy reflects published preclinical and biochemistry literature only and does not constitute dosage, administration, treatment, or therapeutic guidance.
Catalog Context
Testagen (KEDG) is supplied as a research-grade lyophilized peptide catalog item under the Peptide Bioregulators (Khavinson) family. PeptideDistro.com lists this entry for qualified research and wholesale buyers; pricing, MOQ, and documentation packets are reviewed during account intake. Page copy is framed exclusively around mechanism literature, molecular identifiers, and bulk catalog specifications.
Wholesale & Documentation
PeptideDistro.com supplies Testagen (KEDG) in research-grade lyophilized format with COA, HPLC, and mass spectrometry data per lot. Pricing, MOQ, and label coordination are reviewed during account intake.