BPC-157
How to reconstitute the 20 mg vial and convert any target dose into insulin units. Reconstitution math and unit conversions for the 10 mg and 20 mg vials. Any dose figures are community-reported and anecdotal — there is no validated human dose.
No validated human dose. BPC-157 is a research-use peptide with no FDA-approved dose. The reconstitution math below is exact measurement — a calculator, not advice. Any usage figures are community-reported and clearly labeled, and none of this is medical advice.
Calculate for your vial
Enter the mg on your BPC-157 vial, the bacteriostatic water you added, and your target dose — it works out the exact units to draw on a U-100 insulin syringe, for whatever you personally have.
Reconstitution Calculator
Check the decimal. A misplaced decimal point here is a 10× dosing error. Re-read every number, and confirm your dose with a licensed clinician before you draw.
Educational only — not a dosing recommendation. This tool does the measurement math; it does not tell you what to take. On a U-100 insulin syringe, 100 units = 1 mL.
1 · Find your dose
Pick what you're using BPC-157 for and how much bacteriostatic water you added — this pulls out the exact units to draw and how often people report using it.
to draw 250 mcg–500 mcg at 2 mL water
10 mg/mL · 100 mcg per unit
- How often
- Once or twice daily
- Cycle
- Commonly ~4–6 weeks, then a break
Community-reported and anecdotal — not from controlled human trials. There is no validated human dose; this describes what people report, not a recommendation.
2 · Reconstitute it cleanly, step by step
How to turn the 20 mg powder into a measured liquid with clean, sterile technique. More water means each insulin unit holds less peptide — easier to measure small amounts accurately.
1Swab the stoppers
Wipe the rubber top of each vial with an alcohol pad and let it air-dry.
2Draw the water
Pull your bacteriostatic water up into the insulin syringe.
3Reconstitute
Inject it slowly down the inside wall of the peptide vial — never straight onto the powder.
4Swirl to dissolve
Gently swirl until the powder fully dissolves into a clear liquid. Never shake.
5Equalize, then draw
To draw a dose: push in an equal amount of air first to equalize the pressure, then pull your dose.
- 1
Swab both tops
Wipe the rubber top of the bacteriostatic-water vial and the BPC-157 vial stopper with a fresh alcohol pad, and let them air-dry. Never touch the needle or the stoppers after wiping.
Alcohol swab · let dry - 2
Draw the water
First pull 2 mL of air into the syringe and inject it into the bacteriostatic-water vial to equalize the pressure, then draw your 2 mL of water back out. Inject it into the BPC-157 vial down the inside glass wall, not onto the powder.
2 mL BAC water - 3
Swirl, don't shake
Gently swirl the 20 mg vial until the powder fully dissolves into a clear liquid. Never shake — shaking can damage the peptide and foam the solution.
Swirl, don't shake - 4
Know your strength
The vial is now 10 mg/mL. Each unit on a U-100 syringe holds about 100 mcg.
10 mg/mL - 5
Re-swab & draw your dose
Wipe the stopper again. With a fresh insulin syringe, pull back 5 units of air and inject it into the vial to equalize the pressure, then draw 5 units (0.05 mL) for a 500 mcg dose.
5 units - 6
Store it right
Keep the mixed vial in the fridge, away from light. Use a new sterile syringe every time, never share, and drop used sharps in a proper container.
Refrigerate · fresh needle
What each water volume gives you:
3 · Full units reference
Every bacteriostatic-water volume (rows) against every target dose (columns) — each cell is the U-100 units and the exact draw in mL. The highlighted row is the easiest volume to measure.
| BAC water | Concentration | Per unit | 250 mcg | 500 mcg | 750 mcg | 1 mg |
|---|---|---|---|---|---|---|
| 1 mL | 20 mg/mL | 200 mcg | 1.3u0.013 mL | 2.5u0.025 mL | 3.8u0.037 mL | 5u0.05 mL |
| 2 mLeasy pick | 10 mg/mL | 100 mcg | 2.5u0.025 mL | 5u0.05 mL | 7.5u0.075 mL | 10u0.1 mL |
| 3 mL | 6.67 mg/mL | 66.67 mcg | 3.8u0.037 mL | 7.5u0.075 mL | 11.2u0.112 mL | 15u0.15 mL |
| 5 mL | 4 mg/mL | 40 mcg | 6.3u0.063 mL | 12.5u0.125 mL | 18.8u0.188 mL | 25u0.25 mL |
4 · Everyday usage
Community write-ups typically describe starting at the low end of the anecdotal range and adjusting from there — with acute injuries commonly front-loaded toward the higher end (~500 mcg twice daily, ≈1 mg/day). This is a description of reported practice, not a validated starting dose.
Injury / acute recovery
Community-reported · anecdotalMost commonly described front-loaded for a few weeks, sometimes near the area of concern, then reassessed.
- Reported amount
- 250 mcg–500 mcg≈ 2.5–5 units @ 2 mL
- Frequency
- Once or twice daily
- Cycle
- Commonly ~4–6 weeks, then a break
Community-reported and anecdotal — not from controlled human trials. There is no validated human dose; this describes what people report, not a recommendation.
Maintenance / general use
Community-reported · anecdotalLower, less frequent use that some describe once an acute phase has passed.
- Reported amount
- 250 mcg–500 mcg≈ 2.5–5 units @ 2 mL
- Frequency
- Once daily or every other day
Community-reported and anecdotal — not from controlled human trials, not a recommendation, and not medical advice.
Frequently asked questions
How many insulin units is 250 mcg of BPC-157 from a 20 mg vial?
- Reconstituting a 20 mg vial with 2 mL of bacteriostatic water gives 10 mg/mL — about 100 mcg per unit. Drawing 250 mcg is 0.025 mL, or 2.5 units on a U-100 insulin syringe. This is measurement math, not a dose recommendation.
How many insulin units is 500 mcg of BPC-157 from a 20 mg vial?
- Reconstituting a 20 mg vial with 2 mL of bacteriostatic water gives 10 mg/mL — about 100 mcg per unit. Drawing 500 mcg is 0.05 mL, or 5 units on a U-100 insulin syringe. This is measurement math, not a dose recommendation.
Is there an established dose of BPC-157?
- No. BPC-157 is a research chemical with no validated human dose and no FDA approval. Any figures on this page are community-reported and anecdotal, included only to describe reported practice — not as a recommendation. Dosing decisions belong with a licensed clinician.
How much bacteriostatic water should I add to a BPC-157 vial?
- That is a measurement choice, not a dose. Adding more water makes each insulin unit hold less peptide, which can make small amounts easier to measure accurately. The matrix on this page shows the concentration and units for 1, 2, 3 and 5 mL so you can pick a volume that makes your target easy to draw.
WikiPeps is a community reference. Reconstitution figures are deterministic measurement math; usage figures are sourced and labeled. Nothing here is medical advice, a recommendation, or an offer to sell peptides — dosing decisions belong with a licensed clinician.