Reviewed by R. Osei, PharmD · April 2026
Reconstitution, made exact.
Pick a peptide, enter vial strength and bacteriostatic water, and we'll show the precise insulin-syringe draw — plus a printable vial label. All math runs in your browser.
Notice
Educational math tool only — not medical advice. This calculator performs unit conversions for reference. It is not dosing guidance, and does not constitute instructions for self-administration. Reconstitution and injection should only be performed under the supervision of a licensed clinician. Full disclaimer →
Step 02 · Vial & Waterii.
Mix it gently.
mg
Check the vial label or certificate of analysis.
mL
More water → lower concentration → easier to dose small amounts precisely.
Step 03 · Desired Doseiii.
Per injection.
mcg
Results recalculate live as you type.
Result · waiting on inputs
Pick a peptide and fill in your vial details to see how many units to draw.
How it works
Honest math,
three simple steps.
Reconstitution math is straightforward — but getting the units right on an insulin syringe is where people slip. We compute the exact plunger position every time.
01
Lyophilized powder
Peptides ship as freeze-dried powder. The vial label shows total milligrams — this is a fixed amount that never changes.
02
Add bacteriostatic water
Inject slowly down the side of the vial. More water means a lower concentration — and more precise dosing of small amounts.
03
Draw your dose
On a U-100 insulin syringe, 1 mL equals 100 units. This tool computes exactly where your plunger should land.