Free, for readers of Peptides Made Simple
Reconstitution calculator
Pick your peptide and vial, add the liquid and the amount you want. You get the syringe units, worked the same way the books do it on paper, with the math shown. Blends of two peptides work too.
Free, no sign-up. Arithmetic only, done on your phone: vials you save stay in this browser and are never sent anywhere.
Draw
My vials · tap one to open it
Get the chart for every vial size.
The printable quick-reference chart (concentration and units for every common vial size), a lab log and a COA checklist. Free, by email.
Picking a peptide fills in the vial size only; the amount is always yours. The amounts here are examples for the arithmetic, not recommendations. For education and research reference only; not medical advice.
How it's worked
Two formulas cover almost every vial you will ever mix. These are the same steps as the lab math worksheet, with your numbers in them.
1. Find the concentration: amount in the vial ÷ liquid added
2. Find the volume: amount you want ÷ concentration
3. Check it backwards
For a blend, the math runs on the first peptide. The second comes along in the same ratio as the vial: a 10 mg + 10 mg vial gives equal amounts of each in every draw.
Other amounts at
| Amount | Units to draw | Volume |
|---|
Units = amount (µg) ÷ (concentration in mg/mL × 10). On a U-100 insulin syringe 100 units is 1 mL, so 1 unit is 0.01 mL, whatever the barrel size.
Charts for a specific peptide
The water and units for each vial size, with Matthew's step-by-step video.
Want it on paper?
The free reader kit has this as a printable quick-reference chart, plus a lab log and a COA checklist. And an email whenever a book in the series is revised.
- Lab math worksheetHow many units to draw, in six steps with a worked example and blanks for your own vial. Plus a quick-reference chart for every common vial size.
- Printable lab logOne line per vial: what it is, how strong it is, when it was mixed, its lot number.
- COA checklistHow to read the lab report that comes with a vial: right peptide, how pure, who tested it.
- Peptide Starter PackageMatthew's two-part peptide masterclass, a reconstitution guide for 9 peptides and a dosing quick sheet for 38 peptides.
- Edition updatesAn email when any book in the series is revised, with what changed.
Every peptide in the series, mixed step by step with 168 graphics: the Reconstitution Encyclopedia.
Save your mixing card
Print it now, no email needed. Or get the chart for every common vial size and a lab log, free by email.