Testagen
aka Lys-Glu-Asp-Gly
Mechanism
Testagen is a synthetic tetrapeptide (Lys-Glu-Asp-Gly / KEDG) from the Khavinson bioregulator series, claimed to target testicular tissue. Not FDA-approved. Evidence base is extremely thin, with essentially no independently replicated or peer-reviewed support for the advertised reproductive or endocrine benefits in humans.
Identification
| CAS number | 1026993-38-3 |
|---|---|
| Molecular formula | C17H29N5O9 |
| Sequence | KEDG |
| Typical dose | 100–300 mcg/day subcutaneous injection; some protocols use 0.2 mg oral capsules 1–2x daily for 10–30 day cycles |
Vendors selling Testagen
| Vendor | Size | Price | Listed purity | Trust |
|---|---|---|---|---|
| Glacier Aminos | 20 mg | $67.99 | — | 99 |
| BioLongevity Labs | 20 mg | $79.97 | — | 96 |
| Peptide Tech | 20 mg | $38.99 | — | 94 |
| Mile High Compounds | — | $69.99 | — | 94 |
| Verified Peptides | 20 mg | $55.00 | — | 86 |
| Peptidegurus | 20 mg | — | — | 84 |
| Cocer Peptides | 20 mg | $160.00 | — | 82 |
| OROS Research | 20 mg | — | — | 79 |
| NG Peptide | 30 mg | $80.00 | — | — |
| Atomik Labz | 20 mg | $65.00 | — | — |
| Core Peptides | 20 mg | $63.00 | — | — |
| Peptide Crafters | 25 mg | $55.00 | — | — |
| Solution Peptides | 20 mg | $65.00 | — | — |
| Wellness Peptides | — | $55.00 | — | — |
Research
This study will assess the potential of Testagen® TDS-Testosterone to enable transfer of Testosterone to females coming in contact with skin to which Testagen® TDS-Testosterone has been applied and the potential of product to raise serum androgen levels in those women.
source →A large number of South American camelids (SAC) presented to a veterinary clinic are diagnosed with anemia.
source →Experimental and theoretical studies were applied to investigate the adsorption properties of testagen (KEDG) peptide on copper surfaces in sodium chloride solution and, implicitly, its inhibition efficiency (IE) on metal corrosion.
source →Ultrashort peptides (USPs), consisting of 2-7 amino-acid residues, are a group of signaling molecules that regulate gene expression and protein synthesis under normal conditions in various diseases and ageing. USPs serve as a basis for the development of drugs with a targeted mechanism of action.
source →Peptides are characterized by their wide range of biological activity: they regulate functions of the endocrine, nervous, and immune systems.
source →A randomized controlled trial of the plastic BioSand filter (BSF) was performed in rural communities in Tamale (Ghana) to assess reductions in diarrheal disease and improvements in household drinking water quality.
source →Marked fluorescence in cytoplasm, nucleus, and nucleolus was observed in HeLa cells after incubation with each of several fluorescein isothiocyanate-labeled peptides (epithalon, Ala-Glu-Asp-Gly; pinealon, Glu-Asp-Arg; testagen, Lys-Glu-Asp-Gly).
source →