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HomeProductsTestagen 20 mg

Research Use Only — Not for Human Consumption. This compound is sold exclusively for in vitro laboratory research by qualified professionals.

PeptaPeptides
Testagen 20 mg
20 mg
99.1% PurityFor Research Use Only
RUO — Research Use Only
Not for human, veterinary, or clinical use
RUO
Secretagogue

Testagen 20 mg

Testagen — Thymic Tetrapeptide

(67 reviews)
99.1% Purity
$89.99per 20 mg · lyophilized

Testagen is a synthetic tetrapeptide (Lys-Glu-Asp-Gly) derived from thymic extract. It has been studied for its capacity to restore thymic function, enhance T-lymphocyte activity, and modulate immune responses in animal models of aging and immune deficiency. Research suggests roles in T-cell maturation signaling and lymphocyte proliferation. The 20 mg format provides sufficient material for extended animal study protocols. For research use only — not for human consumption.

3rd-Party HPLC Verified
Lot-Specific Certificate
Cold-Chain Shipping
Chemical Information
Molecular FormulaC₁₈H₃₂N₆O₉
Molecular Weight480.48 g/mol
CAS Number65002-67-7
FormLyophilized Powder
Storage-20°C, dry & dark
Purity (HPLC)≥ 99.1%
Amino Acid SequenceLys-Glu-Asp-Gly
1
19 in stock
Not for Human Consumption · For Research Purposes Only
256-bit SSL
Cold-Chain Shipping
Lot-Specific CoA
ISO 9001 Facility
Independent Verification

Third-Party Tested. Every Lot.

Every batch of Testagen 20 mg undergoes independent HPLC and mass spectrometry analysis through an accredited third-party laboratory before it is released for sale. No exceptions. No internal-only certificates.

RP-HPLC Analysis

Every lot measured by reverse-phase HPLC. Testagen 20 mg consistently achieves 99.1%+ purity across batches.

ESI Mass Spec

Electrospray ionization mass spectrometry confirms exact molecular weight and rules out structural isomers or impurities.

Lot-Specific CoA

Your Certificate of Analysis references your exact lot number with actual chromatogram data — not a generic template.

Research Context

Theoretical Research Analysis

All research information below reflects published preclinical literature only. This product is not for human use, consumption, or clinical application of any kind.

Thymic function restoration studies
T-cell maturation and proliferation
Immune aging (immunosenescence) research
Lymphocyte activity modulation

Testagen belongs to the class of short thymic peptides that have been studied for their ability to partially restore immune function in aging models. It is structurally related to thymalin and other thymic polypeptide preparations.

Sequence Information

Amino acid sequence:

Lys-Glu-Asp-Gly

Molecular Formula

C₁₈H₃₂N₆O₉

Molecular Weight

480.48 g/mol

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FDA Disclaimer: The information and statements contained on this website have not been evaluated by the United States Food and Drug Administration. The products offered by PeptaPeptides LLC and the statements made herein are not intended to diagnose, treat, cure, or prevent any disease or medical condition. PeptaPeptides LLC functions solely as a chemical supplier and raw material provider. PeptaPeptides LLC is not a compounding pharmacy, nor does it constitute a chemical compounding facility as that term is defined under Section 503A of the Federal Food, Drug, and Cosmetic Act. PeptaPeptides LLC is likewise not an outsourcing facility as defined under Section 503B of the Federal Food, Drug, and Cosmetic Act. All compounds and materials offered are provided exclusively for laboratory research, scientific analysis, and in vitro use by qualified researchers and institutions. None of the products available through PeptaPeptides LLC are intended for, approved for, or suitable for human consumption in any form.