BPC-157 5 mg vial
How much bacteriostatic water to add to a 5 mg vial of BPC-157, the syringe units for each common dose, and how many doses the vial holds.
- Water
- 2 mL
- Strength
- 2.5 mg/mL
- Common dose
- 250 mcg
- Draw
- 10 units0.10 mL
- Doses per vial
- 20
The short answer
Mixed with 2 mL of bacteriostatic water, a 5 mg vial of BPC-157 holds 2.5 mg/mL. A 250 mcg dose is then 10 units (0.10 mL) on a U-100 insulin syringe, and the vial holds about 20 doses of that size. Taken 2× per day, it lasts about 10 days.
How much water
The water only sets the strength; the dose and the number of doses in the vial stay the same. Draws are on a U-100 insulin syringe, where 1 unit is 0.01 mL.
| Water added | Strength | Per syringe unit | Draw for 250 mcg |
|---|---|---|---|
| 1 mL | 5 mg/mL | 50 mcg | 5 units (0.05 mL) |
| 2 mL | 2.5 mg/mL | 25 mcg | 10 units (0.10 mL) |
| 3 mL | 1.667 mg/mL | 16.7 mcg | 15 units (0.15 mL) |
Dose chart
Syringe units for each common dose at each water volume. Select a cell to open it in the calculator.
| Dose | Water added | ||
|---|---|---|---|
| 1 mL | 2 mL | 3 mL | |
| 250 mcg | |||
| 300 mcg | |||
| 400 mcg | |||
| 500 mcg | |||
Draws over 100 units show in mL. Faded values are under 2 units, which is hard to measure. Check that your vial holds the larger volumes.
Where the doses come from
- Community 250–500 mcg per injection, 1–2× daily. 250 mcg twice daily is the most cited.
- Community Oral (gut-focused): 250–500 mcg 1–2× daily.
Doses are what labels, trials or community reports reference, not recommendations. BPC-157’s page has the cycle, side effects, cautions and sources.
Mixing and storage
- PrepareLet a refrigerated vial come to room temperature, and wipe both stoppers with an alcohol swab.
- Add 2 mLDraw 2 mL of bacteriostatic water and let it run slowly down the inside wall of the vial.
- Swirl, don’t shakeSwirl gently until the powder dissolves and the liquid is clear.
- Label itWrite the date and the strength, 2.5 mg/mL, on the vial.
Storage: Powder: −20 °C long-term. Mixed: 2–8 °C, use within about 3–4 weeks.
The reconstitution guide covers each step, and the units page explains syringe markings.
Questions
How much water do I add to a 5 mg vial of BPC-157?
There’s no single right amount: the water only sets the strength. With 2 mL of bacteriostatic water, a 5 mg vial holds 2.5 mg/mL. With 1 mL it’s 5 mg/mL; with 3 mL it’s 1.667 mg/mL. Less liquid makes each dose a smaller draw; more makes small doses easier to measure.
How many units is 250 mcg of BPC-157?
With 2 mL in a 5 mg vial, 250 mcg is 10 units (0.10 mL) on a U-100 insulin syringe. With 1 mL, 5 units (0.05 mL); with 3 mL, 15 units (0.15 mL).
How many doses are in a 5 mg vial of BPC-157?
About 20 doses of 250 mcg, or 12 of 400 mcg or 10 of 500 mcg. Taken 2× per day at 250 mcg, it lasts about 10 days.
How long does a mixed vial of BPC-157 keep?
Powder: −20 °C long-term. Mixed: 2–8 °C, use within about 3–4 weeks.
Other vial sizes
Sources
- Safety of intravenous BPC-157 in humans: a pilot study (PubMed) PMID 40131143
- FDA: bulk drug substances that may present significant safety risks
- FDA briefing document for BPC-157-related bulk drug substances, Pharmacy Compounding Advisory Committee (July 2026)
- FDA advisory committee backs 6 peptides for compounding (AJMC, July 2026)
The math on this page uses the doses and storage on BPC-157’s page.