How to Accurately Reconstitute and Dose Research Peptides
Reconstituting lyophilized (freeze-dried) peptides requires strict mathematical precision. Unlike oral supplements, research compounds must be manually mixed with a sterile solvent—almost exclusively Bacteriostatic Water—before they can be drawn into a U-100 insulin syringe. Our Peptide Reconstitution Calculator is designed to perform reverse-math, turning your target milligram or microgram dose into an exact visual "tick mark" on your syringe, or helping you calculate the perfect water volume for a flawless draw.
Understanding Reconstitution Math
The math behind peptide dosing is a function of concentration (Mass / Volume). If you add 2mL of bacteriostatic water to a vial containing 10mg of a peptide, you have created a solution with a concentration of 5mg per 1mL.
- Vial Size: The total amount of raw peptide powder in the glass vial, usually measured in milligrams (mg). Common sizes are 2mg, 5mg, or 10mg.
- Bacteriostatic Water Added: The total fluid volume you inject into the vial. Adding more water does not dilute the potency of the total vial, it simply means you must draw more fluid into the syringe to hit the same target dose.
Reading a Standard U-100 Insulin Syringe
A standard U-100 insulin syringe holds exactly 1 milliliter (1mL) of liquid. The "100" means the syringe is divided into 100 units. Therefore, 1 Unit = 0.01mL.
Because converting milligrams to micrograms, and then dividing by fluid volume is prone to human error, this calculator visually maps the exact "Unit" line you need to pull the plunger to. Whether you are using a 1cc (100 unit), 0.5cc (50 unit), or 0.3cc (30 unit) syringe, the unit demarcations represent the exact same volume.