The reconstitution calculator, in plain English.

Step by step

1. 1Pick your peptide. It's just a tag — the math works the same regardless of which peptide is in the vial.
2. 2Enter the vial size in mg. This is printed on the vial label (e.g., 5 mg, 10 mg).
3. 3Enter how much bacteriostatic water you'll add. Common volumes are 1–3 mL. More water = more dilute = bigger draws on the syringe.
4. 4Enter your target per-injection dose in mg. For example, 0.25 mg (250 mcg) is a typical BPC-157 starting dose.
5. 5Read "Draw to" on the right. Pull the plunger to that unit mark on the recommended insulin syringe. The diagram below shows the fill line.

Definitions

Reconstitution

— Adding sterile liquid to dry peptide powder to make it injectable.

Bacteriostatic water (BAC water)

— Sterile water with 0.9% benzyl alcohol that prevents bacterial growth, letting a reconstituted vial last several weeks refrigerated.

Concentration (mg/mL)

— How much peptide is in each milliliter of solution. The same dose draws different units depending on concentration.

Insulin syringe (U-100)

— A syringe calibrated so 100 units = 1 mL. "30-unit", "50-unit", and "100-unit" refer to total capacity.

Unit

— A tick mark on a U-100 insulin syringe. 1 unit = 0.01 mL.