Reference
Peptide reconstitution chart
A peptide mixing chart for the most common vial sizes. Enter the mg per vial and the table shows the concentration at each water volume, plus the draw — in U-100 insulin units — for a range of target amounts. For the full solve-any-field tool, use the reconstitution calculator.
| Water | Concentration | 100 mcg | 250 mcg | 500 mcg | 1 mg |
|---|---|---|---|---|---|
| draw, in U-100 units | |||||
How to use this chart
Set the mg per vial (the mg of peptide printed on the vial). Each row is a different amount of bacteriostatic water — rows stop at 3 mL because a standard small peptide vial holds about 3 mL of liquid at most; the Concentration column shows how strong that makes the solution, and the dose columns show what to draw — in U-100 insulin units — to get that amount of peptide. Pick the row whose draws land on easy-to-read marks.
Reading it
- ConcentrationMilligrams of peptide per millilitre at that water volume (vial ÷ water).
- Dose columnsThe syringe units to draw for 100, 250, 500 mcg, or 1 mg of peptide.
- Blank cellThat draw would be over 100 units (more than a 1 mL syringe) — add more water or use a larger syringe.
Common questions
Why are the draws shown in units, not mL?
Most research uses a U-100 insulin syringe marked in units, where 100 units = 1 mL. To convert, divide units by 100 (10 units = 0.1 mL).
My target isn't in the table — what do I do?
Use the reconstitution calculator, which solves any vial, water, target, or draw and supports other syringe sizes.
What does a 10 mg peptide vial with 2 mL of water give?
5 mg/mL. On a U-100 insulin syringe that is 2 units per 100 mcg, 5 units per 250 mcg, 10 units per 500 mcg and 20 units per 1 mg. Enter 10 above to see the full row set for 1, 1.5, 2, 2.5 and 3 mL.
Does the chart account for purity?
No — it uses the labeled mass. If your COA reports a purity below 100%, run the purity-adjusted calculator first.