BPC-157 Reconstitution & Dose Calculator
BPC-157 is a synthetic 15-amino-acid peptide derived from a protective stomach protein, studied for tendon, ligament, and gut repair. This free calculator turns a BPC-157 vial plus bacteriostatic water into the exact insulin syringe units to draw. It is unit-conversion math, not a dosing recommendation. BPC-157 vials are commonly 5 mg, 10 mg, so the tool below starts at 5 mg; change any field to match your own vial.
Reconstitution calculator
Pick your peptide, vial size, and BAC water. Get exact units to draw on a 1 mL insulin syringe.
Pick your peptide
Type to search, or pick from the dropdown. Auto-fills the recommended vial size.
- • Standard insulin syringe = 100 units total
- • Small markings = 1 unit each
- • Large markings = 10 units (0.1 mL)
- • 100 units = 1 mL
Always verify reconstitution math against a second source before any dose you actually inject.
BPC-157 concentration at a glance
Concentration is just vial mg divided by the bacteriostatic water you add. A more dilute mix gives a bigger, easier-to-read draw on the syringe. Here is a 5 mg BPC-157 vial at three common water volumes (U-100 insulin syringe, where 1 unit = 0.01 mL):
| BAC water | Concentration | Per insulin unit | 50 units draws |
|---|---|---|---|
| 1 mL | 5 mg/mL | 50 mcg | 2.50 mg |
| 2 mL | 2.50 mg/mL | 25 mcg | 1.25 mg |
| 3 mL | 1.67 mg/mL | 16.67 mcg | 0.83 mg |
Worked example: a 5 mg BPC-157 vial in 2 mL of bacteriostatic water is 2.50 mg/mL. One unit on a U-100 pin is 25 mcg, so if your protocol calls for 1.25 mg you would draw to 50 units. That is arithmetic from the numbers you enter, nothing more. Pepdex does not tell you what dose to take.
BPC-157 reconstitution questions
- How do you reconstitute BPC-157?
- Add bacteriostatic water to the dry BPC-157 vial slowly down the side, let it dissolve without shaking, and store it in the fridge. The amount of water you add sets the concentration. A 5 mg vial in 2 mL of water is 2.50 mg/mL; the same vial in 1 mL is 5 mg/mL. Use the calculator above with your own vial and water to see the exact result.
- How many insulin units is a dose of BPC-157?
- It depends entirely on how much water you mixed, because milligrams describe the powder and units describe the volume drawn. With a 5 mg vial reconstituted in 2 mL, one unit on a U-100 pin is 25 mcg, so 50 units draws 1.25 mg. Change the water and that number changes. Enter your numbers above to get yours.
- What vial sizes does BPC-157 come in?
- Commonly 5 mg, 10 mg. The calculator defaults to 5 mg for BPC-157 but you can set any vial size. Always work from the mg printed on the vial you actually have, not a number from a forum.
- Is BPC-157 the same as TB-500?
- No. BPC-157 is a gastric pentadecapeptide studied largely for local tissue and the gut; TB-500 is a Thymosin Beta-4 fragment studied for broader cell migration. Different molecules at different vial sizes, so the reconstitution numbers do not carry over from one to the other.
- Is the BPC-157 calculator free?
- Yes. The reconstitution and units math is completely free with no account. A free account adds saving your protocol plus a 3-day trial of the AI Coach and Personal Stack.
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Educational reference only. Pepdex does not sell peptides, recommend vendors, or tell you what dose to take. BPC-157 reconstitution math here is unit conversion you can verify by hand. Talk to a qualified provider about your own use.