
TESTAGEN
Research-Grade Peptide · 99%+ Purity · COA Certified
Volume Discounts

Product Description
Synthetic Peptide for Testicular Bioregulator Research
Technical Overview
Testagen 20mg is a synthetic peptide compound developed for laboratory research involving testicular gene expression and short-peptide bioregulator activity, receptor interaction analysis, and controlled experimental investigation. In research settings, this peptide is commonly utilized for studying testicular cell signaling, hormone-related transcription factor activity, and related biochemical mechanisms.
Testagen is a Khavinson-class short-peptide bioregulator with the sequence L-Lys-L-Glu-L-Asp-L-Gly (KEDG), originally derived from analysis of testicular tissue extracts by Prof. Vladimir Khavinson's research group. Short peptides in this class are hypothesized to interact with DNA in a sequence-specific manner, modulating gene expression within their tissue of origin. Testagen shares three of four residues with Livagen, substituting glycine for alanine at the C-terminus, which is associated with testicular-tissue specificity within the Khavinson framework.
Specifications
Sequence: L-Lys-L-Glu-L-Asp-L-Gly (KEDG)
Molecular Formula: C₁₇H₂₉N₅O₉
Molecular Weight: ~447 g/mol
Purity: ≥ 99%
CAS: 1026993-38-3
Form: Lyophilized powder
Research Use Only
This product is intended for laboratory research purposes only and is not for human or veterinary use, diagnostic procedures, or therapeutic application.
Product Specifications
- Purity
- ≥99% by HPLC · COA available
- Physical Form
- Lyophilized powder
- Storage
- Store at -20°C; protect from light & moisture
- Testing
- HPLC-MS + Mass Spec
- Origin
- USA Manufactured
For Research Use Only. Not for use in diagnostic, therapeutic, or human or animal in-vivo procedures. This product is sold exclusively for in-vitro laboratory research use. It is not a drug, dietary supplement, food, or cosmetic and has not been approved by the U.S. Food and Drug Administration for any use. Not for human or animal consumption.
Research Workflow Steps
Store Properly
Refrigerate reconstituted solution at 2–8°C. Use within 30 days.
Document Research
Log batch number, concentration, and research notes per lab protocol.
Product Quality Guarantee
We are continuously conducting HPLC testing on all of our raw powders as well as our finished products to ensure the quality of what we ship. You can have the product you bought from us independently tested at any HPLC-licensed testing facility — and if the results come back negative, we will refund the following:
About This Product
Is this peptide research grade?
Yes. All our peptides are 99%+ purity research grade, verified by independent 3rd-party labs with full Certificates of Analysis.
What does "Research Use Only" mean?
Our peptides are intended exclusively for laboratory research and educational purposes. They are not manufactured for human consumption, diagnostic use, or therapeutic application.
How do I store this product?
Unreconstituted: store at -20°C for long-term storage or room temperature for up to 30 days. Reconstituted: refrigerate at 2-8°C and use within 30 days.
How fast will my order ship?
Orders placed before 2PM EST ship same-day via tracked shipping. Most USA orders arrive within 2-3 business days.
Can I see the COA before buying?
Yes. Every batch COA is available on our COA page before purchase — not after.
What if I'm not satisfied?
We stand behind our quality. If the product doesn't meet specifications, contact us within 7 days of delivery and we'll make it right.







