How much BAC water do I add?
Tell us your peptide, vial size, and dose. We'll tell you exactly how much bacteriostatic water to add so your syringe math comes out clean and easy to measure.
Which peptide?
We'll pre-fill your vial size and dose with common starting values.
What size is your vial?
This is the number printed on the vial label — it tells you how much peptide powder is inside.
How much per dose?
Typical range for BPC-157: 200–500 mcg. We pre-filled a common starting dose.
Add 2 mL of bacteriostatic water to your 5 mg vial. This gives you clean, easy-to-measure doses on a standard insulin syringe.
Why this number?We aim for about 10 units per dose on a U-100 insulin syringe. That makes it easy to draw accurately without squinting at tiny markings. The math: (10 × 5) ÷ (100 × 0.250) = 2 mL.
What is bacteriostatic water?
Bacteriostatic water (BAC water) is sterile water with a tiny amount of benzyl alcohol (0.9%) added. The benzyl alcohol prevents bacteria from growing, which means your reconstituted peptide stays safe to use for weeks instead of hours.
You can't use tap water, bottled water, or regular sterile water. Only BAC water is designed for this purpose.
What does “reconstitute” mean?
Peptides arrive as a dry powder inside a sealed vial. Before you can measure and inject a dose, you need to dissolve the powder in liquid. That process is called reconstitution. You add BAC water to the vial, swirl gently, and the powder dissolves into a clear solution.
Why does the amount of water matter?
The amount of water you add determines the concentration of the solution — how much peptide is in each drop of liquid. More water means a weaker solution (you draw more liquid per dose). Less water means a stronger solution (you draw less per dose).
We pick an amount that makes each dose land on a round, easy-to-read number on your syringe. No squinting at tiny lines, no guessing between markings.