BPC-157 Reconstitution & Dosage Calculator

This calculator does one job. It turns your vial size, the amount of BAC water you add, and your target dose into three numbers: concentration in mg/mL, the volume you draw in mL, and the matching units on a U-100 insulin syringe.

BPC-157 ships as a freeze-dried powder. Before it can be drawn into a syringe, it has to be mixed with bacteriostatic (BAC) water. The amount of water you add sets the concentration, and the concentration decides how many units you draw.

BPC-157 is dosed in micrograms (mcg), not milligrams. A common dose is 250 mcg, which is 0.25 mg. Mixing up mg and mcg is a 1000x error, so the calculator lets you enter mcg or mg and shows both.

The easiest path is to use the BPC-157 preset dropdowns first. Pick the vial setup that matches your research vial, then pick the common dose you want to calculate. The custom fields are only there when your vial size, BAC water volume, or target dose does not match a preset.

The math is short. Concentration is vial size divided by BAC water. Draw volume is target dose divided by concentration. U-100 units are milliliters multiplied by 100.

Here is one example. A 5 mg vial with 2 mL of BAC water gives 2.5 mg/mL. A 250 mcg dose is 0.25 mg. That is 0.25 divided by 2.5, which is 0.10 mL, or 10 units. The same vial with 1 mL of water is 5 mg/mL, so 250 mcg becomes 0.05 mL, or only 5 units - harder to read.

Common research protocols discuss BPC-157 in the 200 to 500 mcg range per injection, sometimes once or twice daily, on cycles of several weeks. We list these numbers because people search for them. This is not a dose recommendation, and the calculator does not tell you which dose to use.

Below is how those mcg values convert to U-100 syringe units at two common research concentrations. Remember 1000 mcg equals 1 mg.

BPC-157 doses are tiny, so they are written in mcg. 1 mg equals 1000 mcg, so 250 mcg is 0.25 mg, not 250 mg. Reading mg as mcg is a 1000x error. When you enter a dose, double-check the unit before you draw.

Add the BAC water slowly down the side of the vial, not straight onto the powder. Swirl gently or roll the vial between your hands. Do not shake, because shaking makes foam and you cannot draw an accurate dose through bubbles. Mixed BPC-157 should look clear and colorless.

Keep the dry powder cold and dark. After mixing, store the vial in the refrigerator and use it within about 4 weeks. Do not freeze a mixed vial. A 5 mg vial gives 20 doses at 250 mcg or 10 doses at 500 mcg. A 10 mg vial gives 40 doses at 250 mcg.

BPC-157 and TB-500 are often discussed together for recovery research. If you use both, reconstitute and draw them separately. Do not mix two peptides in the same syringe unless you bought a pre-blended combo vial. To plan TB-500 separately, use the main peptide reconstitution calculator.