What is peptide reconstitution?
Most research peptides ship as a lyophilized (freeze-dried) powder to stay stable in transit. Before anything else, that powder is dissolved — “reconstituted” — by adding a measured volume of bacteriostatic water. How much water you add sets the concentration of the resulting solution, which is what this calculator works out for you.
The calculator answers one informational question: given a vial of X mg and Y mL of water, what's the concentration, and where would a given amount land on a standard U-100 insulin syringe (where 100 units = 1 mL)? It's a unit-conversion helper — nothing more.
How to read the calculator
1 · Set your vial strength
Enter the total peptide in your vial in milligrams — common strengths include 5, 10, and 15 mg. Use the custom field for anything else.
2 · Set your water volume
Enter how much bacteriostatic water you're adding, in millilitres. More water = a more dilute solution; less water = more concentrated.
3 · Set your target amount
Choose the amount you want the tool to convert. The calculator returns the draw volume, the equivalent units on a U-100 syringe, the solution concentration, and how many draws your vial contains.