Reconstitution Tool
Peptide Reconstitution
Peptide Reconstitution
Calculator
Calculate accurate dosages for reconstituting lyophilized peptides with bacteriostatic water. Select your parameters and get instant results.
Peptide Dose
How much peptide per injection
mg
0.1 mg = 100 mcg (μg)
Peptide Strength
Corresponds with the size of your vial
mg
Common: BPC-157 = 10mg • NAD+ = 1000mg
Bacteriostatic Water
Determines peptide concentration
mL
Common: GLP-1s = 2–3mL • Peptides = 3mL • NAD+ = 5mL
Results
5 units
0.1 mg
Peptide Dose
5 units
Draw Syringe To
10 doses
Your Vial Contains
2 mg/mL
Concentration
Need bacteriostatic water for reconstitution?
Shop Bac WaterHow To Use The Calculator
1
Set Your Dose
Enter your desired dose per injection. For example, 250mcg (0.25mg) of BPC-157.
2
Enter Peptide Strength
Select the total mg printed on your peptide vial. For example, 5mg or 10mg.
3
Add Water Volume
Enter how much bacteriostatic water you'll add to the vial. Common amounts are 2–3mL.
4
Read Your Results
The calculator shows how many units to draw, the concentration, and doses per vial.
Frequently Asked Questions
What is a peptide reconstitution calculator?
A peptide reconstitution calculator determines how much solution to draw in a syringe to achieve your desired peptide dose, based on the peptide vial strength and the volume of bacteriostatic water used to reconstitute it.
How do units relate to mL on a syringe?
On a standard insulin syringe, 100 units equals 1mL. So 10 units = 0.1mL, 15 units = 0.15mL, and so on. The calculator converts everything to units for easy reading.
How much bacteriostatic water should I use?
Common reconstitution volumes are 2–3mL for most peptides, 2–3mL for GLP-1 receptor agonists, and 5mL for NAD+. More water means a more dilute solution and a larger draw volume per dose.
What is the difference between mg and mcg?
1mg (milligram) equals 1,000mcg (micrograms). Peptide doses are often measured in mcg. For example, 250mcg is the same as 0.25mg.
What if the calculator says to decrease water?
If your dose requires drawing more than 100 units (1mL), the solution is too dilute. Reduce the amount of bacteriostatic water to increase concentration and reduce the draw volume.
Can I use sterile water instead of bacteriostatic water?
Sterile water is single-use only. Bacteriostatic water contains 0.9% benzyl alcohol which inhibits bacterial growth, allowing multiple withdrawals over 28 days. For multi-dose vials, always use bacteriostatic water.