Research Peptide

Testagen

Testagen 20mg — 99.933% HPLC (Accumark Labs, lot 31779, Sep 28, 2026)

PH-TESAG-00199.933%HPLC verified
Testagen research peptide, 99.933% purity
Accumark LabsCertificate of AnalysisReport P5W4-RU48
Lab certificate

Testagen certificate of analysis

Lot 31779

Tested on the 21.331 mg vial

Sample received Sep 24, 2026 · Analysis completed Sep 28, 2026

Testagen vial
  • Purity (HPLC)

    • 99.933%

    Conforms spec > 98.0%

  • Identity

    • Testagen

    Conforms

  • Quantity

    • 21.331 mg

    Measured

Figures copied exactly from Accumark Labs's report P5W4-RU48.

Catalog no. PH-TESAG-001Size 20mgMW (reference) 447.45 DaSequence Lys-Glu-Asp-Gly

Overview

Description

Testagen (Lys-Glu-Asp-Gly, KEDG) is a synthetic tetrapeptide bioregulator from the Khavinson short-peptide series.

Mechanism of Action

Testagen (KEDG) is classified in Khavinson's systematic review as a monofunctional peptide bioregulator associated with male reproductive system function regulation (PMC8619776, Table 5); the same peptide's differentiation-activation mechanism is documented at the immune-cell level in an earlier paper by the same author group (PMID: 31808038).

Research Applications

  • Male reproductive system peptide bioregulator classification (PMC8619776, Table 5)
  • Peptide-induced differentiation mechanism, immune-cell level (PMID: 31808038)

References

  1. Khavinson VK, et al. Peptide Regulation of Gene Expression: A Systematic Review. Molecules. 2021. PMID: 34834147 (PMC8619776), Table 5.
  2. Khavinson VK. Peptide Regulation of Cell Differentiation. PMID: 31808038

Product record has no independent sequence/MW listing; identity rests on Khavinson's own systematic review. "Testagen" is a coined name with no plausible alternate referent.

Specs

Compound Specifications

Form
Lyophilized powder
Storage
−20°C or below, protected from light and moisture
Handling

Storage & Handling

  • Storage

    Testagen is supplied as a lyophilized powder. Keep it sealed, dry, and away from light until reconstitution.

  • Stability

    Lyophilized material is stable when frozen. Once reconstituted, keep it cold and minimise handling to preserve integrity.

Research

Research Overview

Testagen is a synthetic peptide compound used in laboratory research settings. Researchers studying longevity and cellular aging research use this compound to investigate cellular signaling pathways, receptor binding affinities, and structure-activity relationships. Its available Certificate of Analysis documents the reported laboratory results.

Testagen compound facts

Molecular Weight
447.45 Da
Sequence
Lys-Glu-Asp-Gly
Key PubMed references
PMID 31808038, PMID 34834147
FAQ

Frequently Asked Questions

What is Testagen?

Testagen is a research compound supplied for in-vitro laboratory use. Sequence: Lys-Glu-Asp-Gly. Supplied for longevity research laboratory research. A third-party Certificate of Analysis is published for the current lot. Research Use Only — not for human or veterinary use.

What purity is Testagen?

The current Certificate of Analysis for Testagen reports 99.933% purity by HPLC (Accumark Labs report P5W4-RU48).

Does Testagen include a Certificate of Analysis?

Yes. Accumark Labs report P5W4-RU48 for Testagen is on our COA page, with a link to the lab's own report.

How should Testagen be stored?

Testagen is supplied as a lyophilized powder. Store it at −20°C or below, protected from light and moisture — lyophilized material is stable frozen. Once reconstituted, keep it refrigerated and avoid freeze-thaw cycles.

How is Testagen shipped?

Orders ship at a $15 flat rate, free on orders of $200 or more, in discreet, insulated packaging. Domestic delivery takes 2–3 business days — 2-day across California, nearby Nevada, and on orders of $250+.

Can Testagen be used on humans or animals?

No. Testagen is supplied strictly for in-vitro laboratory research. It is not for human or veterinary use, consumption, or diagnostic or clinical applications.

How do I verify the Testagen Certificate of Analysis is real?

Open the lab report link on our certificate page — it goes to Accumark Labs's own verification portal, not a file we host, so the result can't be edited by us. Confirm the report ID (P5W4-RU48) and figures match what's shown here.

What is the price per mg for Testagen?

The 20mg size of Testagen is $3.60 per mg. See the size selector above for per-mg pricing on every available size.

$72.00$3.60/mg