Testagen
Testicular bioregulator peptide from the Khavinson series. Short peptide (2-4 amino acids) that targets specific tissue for gene expression regulation and organ health optimization.
Beginner Basics
Plain-English guide to Testagen
What it does
This is a short peptide that researchers believe helps support testicular health and may influence hormone production in that area. It's studied for helping the body's cells in the reproductive system function better.
Typical dose
Researchers typically start with 10 micrograms once daily, injected under the skin or placed under the tongue, and may go up to 20 micrograms based on how it's working.
When to inject
Inject in the morning. Give it 2-4 weeks to see if it's working before making any changes.
Storage
Keep the dry powder in the freezer at -20°C. Once you mix it with liquid, store it in the regular refrigerator between 2-8°C and keep it away from light.
First-timer tip
Start at the lower 10-microgram dose first-this peptide is less studied in Western research, so starting small lets you see how your body responds before increasing.
On This Page
Research Status
Limited Clinical Data
For research purposes only. Not approved for human use. Not medical advice.
Research Areas
Side Effects
Mild redness, itching, or slight swelling at injection site. Typically resolves within 1-2 hours. Minimize by rotating injection sites, allowing solution to reach room temperature, and using proper injection technique.
Occasional mild headache reported in early use. Usually transient and resolves with continued use or dose adjustment.
Uncommon with subcutaneous administration. If occurs, may be related to individual sensitivity. Typically resolves without intervention.
Localized fat loss or thickening at repeated injection sites. Preventable through systematic site rotation. Ensure at least 1 inch spacing between injection points and rotate sites with each dose.
Rare but possible hypersensitivity to peptide or excipients. Signs include rash, itching, swelling of face/throat, or difficulty breathing. Seek immediate medical attention if symptoms occur. Discontinue use.
Dosing Reference
| Parameter | Value |
|---|---|
| Dose range | 10-20 mcg |
Frequency, timing and route - members only | |
Research disclaimer
Figures drawn from published research literature and community logs. Not clinical recommendations. Consult a qualified professional. Research use only.
Reconstitution Guide
Do not use saline or bacteriostatic saline, use only bacteriostatic water for reconstitution
Do not shake the vial vigorously; gentle swirling prevents peptide degradation
Discard immediately if the solution appears cloudy, discolored, or contains visible particles
Use within 30 days of reconstitution when stored at 2-8°C
Do not freeze the reconstituted solution; freezing may denature the peptide
Use the PeptideVolt reconstitution calculator for your exact concentration
Storage and Stability
Store lyophilized peptide at -20°C. Refrigerate after reconstitution (2-8°C). Protect from light.
Molecular and Pharmacological Data
Testagen is a short-chain peptide bioregulator derived from testicular tissue that is proposed to regulate gene expression in testicular cells through tissue-specific signaling. The peptide is theorized to interact with cellular receptors and transcription factors to modulate the expression of genes involved in testosterone synthesis, spermatogenesis, and testicular tissue maintenance. As a Khavinson bioregulator, it is designed to restore normal physiological function in target tissues rather than to stimulate supraphysiological responses.
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Research Citations
4 sources
Khavinson VKh, Linkova NS. (2016). Peptide bioregulators: A new class of geroprotectors. Molecules. 21(4):E487. DOI: 10.3390/molecules21040487
Anisimov VN, Khavinson VKh. (2010). Peptide bioregulation of aging: Achievements and perspectives. Biogerontology. 11(2):139-149. PMID: 19701695
Linkova NS, Khavinson VKh. (2015). Peptide bioregulators: Mechanism of action and applications in clinical practice. Advances in Gerontology. 5(1):13-21.
Khavinson VKh, Trofimova SV, Dibrova VA. (2016). Peptide regulation of gene expression: A review. Molecules. 21(2):E175. DOI: 10.3390/molecules21020175
Related: Khavinson Bioregulators
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Research Use Only. All content on this page is provided for informational and educational purposes related to scientific research. Testagen is not approved for human use by the FDA or any equivalent regulatory body. This is not medical advice. Do not use any substance discussed here for therapeutic, diagnostic, or preventative purposes. Consult a qualified healthcare professional before making any health-related decisions. The Peptide Volt does not endorse the use of any research chemicals. 18+ only.