P21 Dosage Calculator
Calculate P21 peptide dosing, reconstitution volume, and syringe draw units. This calculator performs math conversions only — P21 is not FDA-approved. It does not recommend doses for unsupervised use.
Research Protocol
Enter your parameters to see P21 research protocol ranges. These are math conversions only, not medical recommendations.
Recommended Dose
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P21 Research Dosage Chart
| Level | Dose | Phase |
|---|---|---|
| Low | conservative low-dose range | Research start |
Important Notes
- P21 is a research compound with no FDA-approved dose for human use
- Half-life: not fully characterized
- Common administration: intranasal or subcutaneous (research settings)
- Frequency: daily (research)
- Maximum researched dose: per research protocol only
- Side effects vary by compound — discuss any reactions with a healthcare provider
- This calculator performs math conversions only — not medical advice
Reconstitution Calculator
Calculate how much bacteriostatic water to add and how many units to draw on your syringe for your P21 dose.
Results
Enter values and click Calculate
How Reconstitution Works
- Determine concentration: Divide peptide amount by water volume (e.g., 5 mg ÷ 2 mL = 2.5 mg/mL)
- Calculate draw volume: Divide your dose by concentration
- Convert to syringe units: Multiply mL by 100 for U-100 syringes
- Verify syringe capacity: Ensure the draw volume fits your syringe
Example Calculation
Vial: 5 mg P21
Water: 2 mL bacteriostatic
Dose: conservative low-dose range
Syringe: 100U (1 mL)
Concentration: 5 mg ÷ 2 mL = 2.5 mg/mL
Draw volume: See calculator output