BPC-157 Reconstitution Calculator
Enter a BPC-157 vial size, the bacteriostatic water added, and the amount you need to measure. Get the exact insulin-syringe units to draw — live on the syringe below. Because amounts discussed in BPC-157 research are at the microgram scale, exact syringe-unit math matters more than usual. This page performs measurement math only. It’s the same arithmetic built into the PeptideWiz app.
Research compound. BPC-157 is a research compound. It is not FDA approved and has no established human dosing. This page performs measurement arithmetic only — it does not suggest any dose, and dosing decisions belong to a licensed provider.
Common vial sizes
To draw an amount of 250 mcg, pull the plunger to 10.0 units.
Not medical advice. This calculator performs arithmetic on the numbers you enter. It does not recommend a dose, confirm that BPC-157 or any protocol is safe or appropriate for you, or replace your provider. BPC-157 has no established human dosing. Always verify everything with a licensed medical professional.
Example mixing math (arithmetic only)
The water volume you add sets the concentration — it never changes the amount itself, only how big the draw is on the syringe. Here’s how a 5 mg vial reads on a U-100 insulin syringe at three water volumes, using an example 250 mcg draw purely to show the arithmetic:
| Water added | Concentration | Example 250 mcg draw |
|---|---|---|
| 1 mL | 5,000 mcg/mL | 5 units |
| 2 mL | 2,500 mcg/mL | 10 units |
| 3 mL | 1,667 mcg/mL | 15 units |
These rows are demonstrations of the formula, not suggested doses — BPC-157 has no established human dosing. Using a 10 mg vial? Tap the preset above — the calculator redoes every number instantly.
About BPC-157 (research status)
BPC-157 is a synthetic peptide fragment derived from a protective protein found in gastric juice, and it has been studied in preclinical and animal research for tissue and tendon healing. Human clinical evidence is limited, and it has no FDA approval and no established human dosing — it is sold only as a research chemical. Because the amounts discussed in research are at the microgram scale, small measurement errors are proportionally large, which is why exact syringe math matters. Nothing on this page is a dose recommendation.
How to reconstitute a BPC-157 vial
- Gather supplies. The lyophilized BPC-157 vial, bacteriostatic water, a sterile mixing syringe, alcohol wipes, and your insulin syringes.
- Sanitize. Wash your hands and wipe both vial stoppers with a fresh alcohol wipe.
- Draw the water. Pull your chosen volume (for example 2 mL) into the mixing syringe — that volume sets the concentration, so enter the same number in the calculator above.
- Add it slowly. Let the water run gently down the inside wall of the vial. Don’t jet it straight onto the powder.
- Swirl, don’t shake. Gently swirl until the solution is completely clear — shaking can degrade peptides.
- Label and refrigerate. Write the date and concentration on the vial, store it cold, and track draws, remaining volume, and the reconstitution date in the PeptideWiz app.
Full walkthrough: How to reconstitute peptides, step by step →
How the calculation works
vial (mcg) ÷ water (mL)
How much BPC-157 is in every millilitre after reconstitution.
amount (mcg) ÷ concentration
The millilitres that contain exactly the entered amount.
mL × 100
A U-100 insulin syringe holds 100 units per millilitre.
Worked example (arithmetic only): a 5 mg vial (5,000 mcg) with 2 mL of water gives 2,500 mcg/mL. An example 250 mcg amount is 250 ÷ 2,500 = 0.1 mL, and 0.1 × 100 = 10 units — with 20 such example draws in the vial.
Frequently asked questions
How much bacteriostatic water should I add to a 5 mg BPC-157 vial?
There’s no single correct volume — water only sets the concentration, never the amount you draw. Adding 2 mL to a 5 mg vial gives 2,500 mcg/mL, so an example 250 mcg draw is a clean 10-unit measurement; 1 mL doubles the concentration and halves every draw. Pick a volume that makes your measurement land on easy-to-read syringe marks — the calculator lets you compare instantly. These figures demonstrate the arithmetic only; BPC-157 has no established human dosing.
How many units is 250 mcg of BPC-157?
It depends entirely on the vial’s concentration. At 2,500 mcg/mL (5 mg vial + 2 mL water) 250 mcg is 10 units; at 5,000 mcg/mL (same vial + 1 mL) it’s 5 units. Never reuse someone else’s unit figure — calculate from the actual vial amount and water volume. These are example calculations, not recommended doses.
Why are BPC-157 doses in mcg instead of mg?
Amounts discussed in BPC-157 research are typically at the microgram scale — a fraction of a milligram. Since 1 mg = 1,000 mcg, a 5 mg vial contains 5,000 mcg. Working in mcg avoids small decimals, but it also means conversion mistakes are proportionally large — see the unit converter and the units of measure glossary entry for the full mg/mcg breakdown.
Is this calculator medical advice?
No. It is an educational arithmetic tool. It does not recommend a dose, verify that BPC-157 or any protocol is appropriate for you, or replace guidance from a licensed medical provider. BPC-157 is not FDA approved and has no established human dosing.
Track your measurements in the PeptideWiz app →
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