# Testagen: Reference Overview and Reconstitution Notes - facts

Canonical page: https://www.preppinpeppers.com/blogs/the-lab/testagen
Type: Lab article

## TL;DR

Testagen is a synthetic Lys-Glu-Asp-Gly (KEDG) tetrapeptide from the Khavinson bioregulator family, studied in endocrine research. Reference and lab notes.

## Facts Index

| Fact ID | Category | Entity | Attribute | Value | Source | Evidence |
|---|---|---|---|---|---|---|
| testagen:title | identity | Testagen: Reference Overview and Reconstitution Notes | title | Testagen: Reference Overview and Reconstitution Notes | Lab article (https://www.preppinpeppers.com/blogs/the-lab/testagen) | https://www.preppinpeppers.com/blogs/the-lab/testagen |
| testagen:published | identity | Testagen: Reference Overview and Reconstitution Notes | published | 2026-08-15 | Lab article (https://www.preppinpeppers.com/blogs/the-lab/testagen) | https://www.preppinpeppers.com/blogs/the-lab/testagen |
| testagen:author | identity | Testagen: Reference Overview and Reconstitution Notes | author | Preppin' Peppers Editorial Team | Lab article (https://www.preppinpeppers.com/blogs/the-lab/testagen) | https://www.preppinpeppers.com/blogs/the-lab/testagen |
| testagen:topics | identity | Testagen: Reference Overview and Reconstitution Notes | topics | research, Research-only | Lab article (https://www.preppinpeppers.com/blogs/the-lab/testagen) | https://www.preppinpeppers.com/blogs/the-lab/testagen |
| testagen:summary | content | Testagen: Reference Overview and Reconstitution Notes | summary | Testagen is a synthetic Lys-Glu-Asp-Gly (KEDG) tetrapeptide from the Khavinson bioregulator family, studied in endocrine research. Reference and lab notes. | Lab article (https://www.preppinpeppers.com/blogs/the-lab/testagen) | https://www.preppinpeppers.com/blogs/the-lab/testagen |
| testagen:section-1 | content | Testagen: Reference Overview and Reconstitution Notes | section | What it is | Lab article (https://www.preppinpeppers.com/blogs/the-lab/testagen) | https://www.preppinpeppers.com/blogs/the-lab/testagen |
| testagen:section-2 | content | Testagen: Reference Overview and Reconstitution Notes | section | Testagen | Lab article (https://www.preppinpeppers.com/blogs/the-lab/testagen) | https://www.preppinpeppers.com/blogs/the-lab/testagen |
| testagen:section-3 | content | Testagen: Reference Overview and Reconstitution Notes | section | What it is | Lab article (https://www.preppinpeppers.com/blogs/the-lab/testagen) | https://www.preppinpeppers.com/blogs/the-lab/testagen |
| testagen:section-4 | content | Testagen: Reference Overview and Reconstitution Notes | section | Research context and categorization | Lab article (https://www.preppinpeppers.com/blogs/the-lab/testagen) | https://www.preppinpeppers.com/blogs/the-lab/testagen |
| testagen:section-5 | content | Testagen: Reference Overview and Reconstitution Notes | section | Status | Lab article (https://www.preppinpeppers.com/blogs/the-lab/testagen) | https://www.preppinpeppers.com/blogs/the-lab/testagen |
| testagen:section-6 | content | Testagen: Reference Overview and Reconstitution Notes | section | Reconstitution notes (general) | Lab article (https://www.preppinpeppers.com/blogs/the-lab/testagen) | https://www.preppinpeppers.com/blogs/the-lab/testagen |
| testagen:section-7 | content | Testagen: Reference Overview and Reconstitution Notes | section | Dilution and handling notes (compound-specific) | Lab article (https://www.preppinpeppers.com/blogs/the-lab/testagen) | https://www.preppinpeppers.com/blogs/the-lab/testagen |
| testagen:section-8 | content | Testagen: Reference Overview and Reconstitution Notes | section | Handling and storage | Lab article (https://www.preppinpeppers.com/blogs/the-lab/testagen) | https://www.preppinpeppers.com/blogs/the-lab/testagen |
| testagen:section-9 | content | Testagen: Reference Overview and Reconstitution Notes | section | Related reading | Lab article (https://www.preppinpeppers.com/blogs/the-lab/testagen) | https://www.preppinpeppers.com/blogs/the-lab/testagen |
| testagen:section-10 | content | Testagen: Reference Overview and Reconstitution Notes | section | Tools and supplies | Lab article (https://www.preppinpeppers.com/blogs/the-lab/testagen) | https://www.preppinpeppers.com/blogs/the-lab/testagen |
| testagen:section-12 | content | Testagen: Reference Overview and Reconstitution Notes | section | What the research community gets wrong about Testagen | Lab article (https://www.preppinpeppers.com/blogs/the-lab/testagen) | https://www.preppinpeppers.com/blogs/the-lab/testagen |
| testagen:product-gansulin-metal-peptide-pen | products | Testagen: Reference Overview and Reconstitution Notes | references product | Gansulin Pen · Reusable Click-Dial, 3 ml (1-60 Units) | Lab article (https://www.preppinpeppers.com/blogs/the-lab/testagen) | https://www.preppinpeppers.com/products/gansulin-metal-peptide-pen |
| testagen:product-gansulin-3ml-cartridge | products | Testagen: Reference Overview and Reconstitution Notes | references product | Gansulin-Compatible 3 ml Glass Cartridge for Pens (10-Pack) | Lab article (https://www.preppinpeppers.com/blogs/the-lab/testagen) | https://www.preppinpeppers.com/products/gansulin-3ml-cartridge |
| testagen:source-pubmed-ncbi-nlm-nih-gov | source | Testagen: Reference Overview and Reconstitution Notes | cites | Dobriţescu et al., Molecules 2025: The Inhibitory Effect and Adsorption Properties of Testagen Peptide on Copper Surfaces in Saline Environments: An Experimental and Computational Study - pubmed.ncbi.nlm.nih.gov | Lab article (https://www.preppinpeppers.com/blogs/the-lab/testagen) | https://pubmed.ncbi.nlm.nih.gov/40807317/ |
| testagen:source-pubmed-ncbi-nlm-nih-gov-2 | source | Testagen: Reference Overview and Reconstitution Notes | cites | Fedoreyeva et al., Biochemistry (Mosc) 2011: Penetration of short fluorescence-labeled peptides into the nucleus in HeLa cells and in vitro specific interaction of the peptides with deoxyribooligonucleotides and DNA - pubmed.ncbi.nlm.nih.gov | Lab article (https://www.preppinpeppers.com/blogs/the-lab/testagen) | https://pubmed.ncbi.nlm.nih.gov/22117547/ |

## FAQ

### What is the amino acid sequence of Testagen?

Testagen is a synthetic tetrapeptide with the reported sequence Lys-Glu-Asp-Gly (KEDG) — a man-made chain of four amino acids: lysine, glutamic acid, aspartic acid, and glycine.

### How do I calculate Testagen reconstitution concentration?

Divide the vial's peptide mass (mg) by the volume of bacteriostatic water added (mL). Example: 20 mg in 3 mL gives ~6.7 mg/mL; 20 mg in 10 mL gives 2 mg/mL.

### Is Testagen FDA-approved or listed on the WADA Prohibited List?

Testagen is not FDA-approved for any use. It is not named on the WADA Prohibited List but may fall under peptide hormone or metabolic modulator rules; athletes must verify current status with the relevant authority.

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