Testagen Reconstitution Calculator
Enter the amount you want to measure. The vial buttons will highlight which vial strengths create cleaner syringe-unit measurements.
What amount do you need?
Type the target amount, then choose mg or mcg. Example: 2mg or 500mcg.
Work the dose out from body weight
Syringe size:
Possible vial strengths:
Best Match
Good Match
Usable
Harder to Measure
Example Testagen Titration Schedule
| Item | Details |
|---|---|
| Standard dose | 100–300 mcg once daily |
| Courses | 10–20 days, 2–3× per year |
| Originator dose | 10–1000× lower (Russian tradition) |
Efficacy is unknown, not simply unproven. No controlled human data. The '1–5 mg per dose' figure is a recurring placeholder that never matched a validated protocol for any bioregulator; sources disagree up to 1000× on real doses.
Possible vial strengths:
What Is It?
Testagen
Thymic peptide bioregulator.
Bacteriostatic Water
Sterile water containing a bacteriostatic preservative, commonly used when preparing multi-use research vials.
How To Mix Testagen
1
CleanUse alcohol swabs to clean the tops of both vials.
2
Draw BAC WaterDraw the selected amount of bacteriostatic water.
3
Inject SlowlyAdd the liquid slowly down the side of the vial.
4
Swirl GentlyDo not shake. Swirl gently until dissolved.
5
Store ProperlyStore as directed and protect from heat and light.
Best Practices & Common Mistakes
Best Practices
- Use sterile technique.
- Protect from light and heat.
- Store refrigerated when appropriate.
- Use clean syringe-unit math before measuring.
Common Mistakes
- Confusing milligrams with milliliters.
- Choosing an option with awkward decimal units.
- Using too little liquid for very small measurements.
- Shaking the vial aggressively.
Testagen Storage & Handling
Lyophilized Powder: −20°C (−4°F) for long-term storage (up to 24 months). Refrigeration 2–8°C (36–46°F) for short-term use (up to ~3 months). Original sealed vial in the freezer is safest.
Reconstituted Solution: 2–8°C (36–46°F), use within ~7–14 days. Keep sealed, avoid light, and do not repeat freeze-thaw cycles.
Reconstituted Solution: 2–8°C (36–46°F), use within ~7–14 days. Keep sealed, avoid light, and do not repeat freeze-thaw cycles.
Frequently Asked Questions
Testagen is a Khavinson "bioregulator" — a synthetic tetrapeptide (Lys-Glu-Asp-Gly, ~419 Da) developed in Russia to target testicular tissue and the male hormone axis at the gene level. It comes as an oral capsule (a dietary supplement) and as a research-grade injectable powder. Crucially, it is not testosterone and supplies no hormone — the idea is that it nudges the testes' own gene expression.
No — these are all different. Testagen the peptide doesn't add testosterone (unlike TRT) and doesn't act like hCG or kisspeptin, which directly stimulate hormone signaling; it's a gene-level bioregulator with a much weaker evidence base. Separately, "GAT Testagen" is an unrelated over-the-counter bodybuilding test-booster tablet — a different brand entirely, not this peptide.
In lab and animal models, Testagen is described as supporting Leydig-cell activity and steroid-synthesis genes in the testes, with most data coming from Khavinson's Russian research. There is no published controlled human trial, so claims that it reliably raises testosterone are unproven — treat it as experimental, not a confirmed booster. It's aimed at the male reproductive axis specifically, so it isn't a general supplement for women.
Only the research-grade injectable powder is reconstituted — the oral capsule is swallowed and never mixed. For that powder the math is standard: a 20 mg vial + 4 mL bacteriostatic water = 5 mg/mL, so a 500 mcg amount = 0.1 mL (10 units on a U-100 syringe). No human injectable dose is established (the supplement capsule is about 0.2 mg orally), so any figure is a research choice, not a recommendation.
Testagen has no FDA approval and is sold only as a supplement or research compound, and although user reports describe it as well tolerated, there are no reproductive-toxicity studies, no human pharmacokinetics, and no long-term safety data. Because it may modulate testosterone-related genes, anyone with hormone-sensitive concerns (prostate or testicular cancer) should consult an oncologist first, and fertility or low-T issues warrant a real medical workup. Storage: keep capsules cool and dry; store the lyophilized injectable powder refrigerated and protected from light, and use any reconstituted solution promptly.
Practical takeaway: If your goal involves weight management, metabolic health, recovery, physical performance, cognitive function, appearance, or general well-being, discuss it with a licensed healthcare professional. They can help you evaluate approved, evidence-based options rather than relying on an unapproved or investigational compound. This calculator is intended only for transparent research-reference calculations and does not determine an appropriate amount, recommend use, or replace professional medical guidance.
Important: This tool is for informational and research-reference purposes only. Not intended for human or veterinary use.