Description
Testagen is a synthetic tetrapeptide bioregulator used in endocrine and reproductive tissue research. Limitless Life Nootropics supplies it as a 20mg lyophilized vial, made in the USA and independently tested.
What Is Testagen?
The compound belongs to the family of short regulatory peptides developed by Professor Vladimir Khavinson and colleagues at the St. Petersburg Institute of Bioregulation and Gerontology. Khavinson’s group proposed that di-, tri- and tetrapeptides isolated from specific organs can penetrate cells, interact with DNA and influence gene expression in a tissue-specific way.
This peptide has the sequence Lys-Glu-Asp-Gly (KEDG) and was modeled on regulatory peptides associated with testicular tissue. Research interest has focused on its role as a short signaling molecule and its possible influence on gene expression in endocrine cells.
Each Premium lyophilized vial contains 20mg and may include trehalose as a lyoprotectant.
Key Research Areas
The scientific literature describes this peptide across several areas of investigation:
- Endocrine cell gene expression
- Testicular tissue models
- Short-peptide DNA interactions
- Aging of reproductive tissues
- Comparisons with other KED-family peptides
Researchers can review peer-reviewed studies on Khavinson tetrapeptides through the National Library of Medicine (PubMed) database.
Testagen Specifications
| Product | Testagen |
|---|---|
| Compound type | Tetrapeptide bioregulator (Lys-Glu-Asp-Gly) |
| Format | Lyophilized (freeze-dried) powder in a sealed glass vial |
| Purity | ≥99% (HPLC verified) |
| Origin | Manufactured in the USA |
| Testing | Independent third-party lab |
| Intended use | Laboratory research only |
Built for Reproducible Research
Independent researchers, university groups and private laboratories rely on Limitless Life Nootropics for consistent quality and responsive service. Every listing includes accurate format and size information, our compounds are stored under controlled conditions until they ship, and we stand behind every order. If something is not right, our U.S.-based support team will make it right.
Quality and Third-Party Testing
Consistency matters in research. That is why Limitless Life Nootropics only releases this peptide after independent third-party testing confirms purity and identity. Production takes place in the USA under strict quality controls, and lot-specific documentation supports reproducible results.
Storage and Handling of Testagen
Unopened lyophilized this peptide remains most stable when frozen at -20°C and protected from light. After reconstitution with a suitable diluent, refrigerate at 2–8°C and avoid repeated freeze-thaw cycles.
Need supplies? Pair your order with our reconstitution solution and sterile 10 mL vials for convenient preparation.
Lot Records and Support
Every order of this peptide is tied to a specific production lot, and lot details are recorded so that your team can trace materials back to their source. If you need documentation for a grant report, internal audit or publication methods section, our support team can provide the relevant lot information on request.
How Ordering Works
Orders placed with Limitless Life Nootropics are processed within one to two business days and ship from the United States in discreet, protective packaging. Temperature-sensitive items are packed to limit heat exposure in transit, and every order includes tracking so your lab knows exactly when materials will arrive. Secure checkout protects your payment details at every step.
Related Research Products
Teams working with this peptide often explore Bronchogen Peptide 20mg, CardioCytogen 20mg and Livagen Peptide. Browse the full Bioregulators and Peptides collections, or view every compound in our research peptide catalog at Limitless Life Nootropics.
Frequently Asked Questions
What is the sequence?
It is the tetrapeptide Lys-Glu-Asp-Gly (KEDG).
What size is offered?
Each vial contains 20mg.
Is Testagen for human use?
No. It is sold strictly for laboratory research. It is not intended for human or animal consumption, diagnosis or treatment.
Where can I buy Testagen online?
You can order it directly from Limitless Life Nootropics, a U.S. supplier of third-party tested research peptides with fast, discreet shipping.
Research Use Only
All products sold by Limitless Life Nootropics are intended strictly for in-vitro laboratory research and scientific study. This product is not a drug, food, supplement or cosmetic, has not been evaluated by the FDA, and is not for human or veterinary use. Purchase is limited to qualified researchers aged 21 and over.
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