Tetrapeptide bioregulator (Lys–Glu–Asp–Gly) from the Khavinson peptide series, derived from testicular tissue.
testagen is listed in our china peptide catalog as a finished research compound from an established Chinese manufacturer. It is catalogued under the Sexual Health, Bioregulators For laboratory research use only. Not for human or veterinary use. Peptides of China is a B2B wholesale supplier operating under strict research-use-only terms. All products are sold exclusively for in vitro and preclinical research purposes. research category, and its specification is confirmed with the manufacturer before the order ships. Like every listing on this platform, testagen is supplied for laboratory research use only.
Buy Testagen | Research Grade | Peptides of China Testagen Buy Testagen — Research Grade Peptide Testagen is a sexual health research compound currently in stock directly from a verified Chinese manufacturer. Every batch is tested by the manufacturer for purity and concentration as part of routine quality control. Sourcing is direct — no intermediaries. Public catalog minimum is $300 in goods per supplier. Eligible new customers may use one first-order trial without a monetary minimum; 5% off goods applies from $3,500 per supplier, excluding shipping. International shipping available. Product Overview Tetrapeptide bioregulator (Lys–Glu–Asp–Gly) from the Khavinson peptide series, derived from testicular tissue. Investigated in preclinical andrology research for effects on gonadal cell gene expression, testosterone synthesis pathway markers, and age-related changes in male reproductive tissue function.
Available Variants
| Name | Strength | Pack Size | Purity | Availability |
|---|---|---|---|---|
| Testagen | 20 mg | 10 vials | ≥98% | In Stock |
Specification Highlights
For laboratory research use only. Not for human or veterinary use. Peptides of China is a B2B wholesale supplier operating under strict research-use-only terms. All products are sold exclusively for in vitro and preclinical research purposes.
Sourcing testagen From China
testagen is available through our platform as a china peptide sourced directly from an established Chinese manufacturer. Three points define how we handle it:
- Factory-direct, not trader-sourced. We confirm availability and specification with the manufacturer before the order is confirmed. There is no intermediary resale of unknown-origin vials in this catalog.
- Specification before shipment. The purity and concentration specification shown on this page is the manufacturer’s batch specification. Product-specific quality-control information travels with the order.
- Research-use discipline. Like every listing in our catalog, testagen is supplied for laboratory research use only, under strict research-use terms.
For buyers comparing chinese peptides suppliers, the practical test is whether the seller can name the manufacturer and show the batch documentation. We work the other way around: the manufacturer and the documentation are the offer. Browse the full catalog or see how sourcing works.