Testagen

Lyophilized powder

Testagen is a short synthetic peptide bioregulator studied for testicular and reproductive tissue. Below: today's vial sizes, prices through our link and the vendor's COA details.

Size

$2.16/mg · In stock

Price

$53.99

List

$59.99

Buy 25 mg at Mile High Compounds

Price shown uses code thepeptidecatalog at Mile High Compounds's checkout (10% off list).

Sold by Mile High Compounds. The Peptide Catalog does not sell peptides; we earn a commission if you buy through this link, at no extra cost to you. For laboratory research use only, not for human or veterinary use. Not FDA-approved. Nothing on this page is medical or dosing advice.

Testagen research vial
TestagenMile High Compounds
Third-party testedResearch use only
Certificate of AnalysisVendor-stated: Third-party tested · 7-point panel · COA per productView
  • Vendor-stated testing: Third-party tested · 7-point panel · COA per product
  • Listed on our testagen vendor comparison, ordered by our vendor rankings
  • Lyophilized powder · laboratory research use only
Research-context information only. Testagen is a research peptide. Protocols, doses, and reactions reported below come from published research and self-reported community sources. This article reports what has been documented, not what should be done. Consult a licensed physician for personal medical decisions.

Vial sizes listed by the vendor

Testagen Vial Sizes & Prices

Testagen vial sizes, prices and lots at Mile High Compounds
SizeListWith our codePer mgAvailability
25 mg$59.99$53.99$2.16In stock

Prices checked today, 5:27 AM CT on Mile High Compounds's site, with code thepeptidecatalog applied. Vendor-stated testing: Third-party tested · 7-point panel · COA per product. The lot certificate is on Mile High Compounds's product page. Sizes not re-checked in the last 7 days are hidden. The vendor's checkout is final.

Test results

Testagen Certificate of Analysis

Mile High Compounds posts the certificate on each product page (vendor-stated: Third-party tested · 7-point panel · COA per product). Match the lot number on the vial to its certificate.

View the Testagen certificate on Mile High Compounds's product page.

How to check one: how to verify a peptide COA.

Testagen Dosing in Clinical Research

Reproductive-Tissue Support (Research / No Human Data)

Educational reference only. Individual responses vary. Consult healthcare provider before use.

Vial Size
20 mg
Reconstitution
2 ml BAC water (10 mg/ml)
Dose
1-2 mg (10-20 units) — community convention, not a trial dose
Timing
AM
Frequency
Once daily
Duration
Short 10-20 day courses (community convention)
Protocol Notes
Khavinson testis tetrapeptide (Lys-Glu-Asp-Gly / KEDG). Contains no steroid and is unrelated to testosterone. No reproductive-outcome studies or human dose exist — figures are community conventions.

Why This Dosing Protocol

What dose do people use? Community short courses (~1-2 mg/day for 10-20 days) anchored to the 20 mg vial — conventions, not data.

Why short courses? Convention by analogy to Khavinson pulse dosing, not a tested Testagen protocol.
Full Dosing GuideReconstitution CalculatorCycle Cost Calculator

How Testagen Works

Short-Peptide Bioregulator — Testis / Reproductive (Preclinical Evidence Only)

Target → Signal → Effect → Outcomes

1
Target

Reproductive Tissue / Gene Promoters (proposed)

Testagen is the tetrapeptide Lys-Glu-Asp-Gly (KEDG) from the Khavinson program. Despite the name it contains no steroid and is unrelated to testosterone. It is proposed to regulate tissue-specific gene expression — shown to bind DNA in cell culture, not validated in reproductive tissue.

2
Cellular Signal

Nuclear Binding (in-vitro only)

The one verified compound-specific study showed KEDG entering the nucleus and binding DNA sequence-specifically in HeLa cells — a mechanism demonstration, not a reproductive-tissue study.

3
Systemic Effect

No Reproductive-Outcome Data

There are no studies of Testagen on spermatogenesis, Leydig cells, or any reproductive endpoint. Marketed reproductive mechanisms are unsupported.

4
What You Notice

Unknown in Humans

No human evidence exists. Any libido/reproductive claim is marketing extrapolation, not data.

What Makes This Peptide Different

Testagen is a research tetrapeptide (KEDG) with a verified sequence but — unusually — zero reproductive-outcome evidence. Its only real data is a cell-culture DNA-binding study. No steroid, no hormone effect, no human trials.

Technical specifications

Testagen chemical & analytical data

Form
Lyophilized (freeze-dried) powder in a sealed vial
Presentation
25 mg
Regulatory status
Research peptide; research-grade vials are not FDA-approved.

Testagen Reconstitution Calculator

Dilution math and unit conversions. Prefilled using a common vial size for this peptide.

Open calculator

Storage & Handling

Storage at a glance

Proper storage temperatures, shelf life, reconstitution best practices, and travel tips for lyophilized and reconstituted peptides.

Powder: Freezer
1+ year at -20°C
Reconstituted: Fridge
4 weeks max at 2-8°C
View Complete Storage Guide

Handling specifics

Educational overview on storage, labeling, and traceability considerations for lab environments. Consult primary literature and vendor documentation for specifics.

Powder storage (very stable)
  • Freezer (-20°C): 1+ year
  • Refrigerator (2-8°C): 1-3 months
  • Room temperature: 2-3 weeks (emergency only)
Reconstituted storage (fragile)
  • MUST refrigerate at 2-8°C
  • 4-week maximum shelf life
  • NEVER freeze after reconstitution
  • Use bacteriostatic water for multi-dose

6 answers

Testagen FAQ: Buying, COA, Storage & Research

What is Testagen?
Testagen is a synthetic testis tetrapeptide — Lys-Glu-Asp-Gly, or KEDG — from the Russian Khavinson bioregulator program, marketed for reproductive-tissue support. Despite the name it contains no steroid and is unrelated to testosterone. Its sequence is verified, but there are no reproductive-outcome studies.
Does Testagen raise testosterone?
No. Testagen is a short peptide with no steroid content and no documented effect on testosterone levels. The name refers to the testis tissue it was modeled from, not to the hormone. Any hormonal framing in marketing is unsupported.
How strong is the evidence behind Testagen?
Weak. The only verified compound-specific study concerns nuclear-binding mechanism in cell culture; there are no reproductive or clinical outcome studies. Sold as a research chemical.
How long does reconstituted peptide last?
Once mixed with bacteriostatic water, peptides remain stable for up to 4 weeks when refrigerated at 2-8°C (36-46°F). Unopened powder can last 1+ year in the freezer. Get our complete Storage & Travel Guide.
Is this peptide legal to purchase?
Peptides sold "for research purposes only" are legal to purchase in the US, but are not FDA-approved for human use outside of specific medical applications. Always consult a healthcare provider before use.
New to peptides?
Take our Peptide Match tool to find the best peptide for your goals. You can also read our Complete Guide to Peptides to learn the basics.

Testagen Research Articles

dosing

Testagen Dosage Chart: 10-20 Day Course Protocol

A synthetic testis tetrapeptide with no validated human dose — and no steroid. What research-chem sources report, plus the extract-vs-synthetic caveat.

side-effects

Testagen Side Effects: What the Evidence Shows

Despite the name, Testagen isn't testosterone — and its near-zero side-effect claim rests on almost no independent data. Here's the real picture.

results

Testagen Results: Week-by-Week Timeline

Testagen has no human trials at all — so what shapes its reported timeline? Labeled community reports and the Russian short-course convention.

reconstitution

Testagen Reconstitution: 20mg Vial Mixing Chart

Testagen has no validated human concentration. See how community resources describe mixing the 20mg vial, plus syringe-unit math and storage limits.

Compare Testagen Vendors Before You Buy

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