BPC-157 10 mg reconstitution calculator
How much bac water for BPC-157 10 mg?
There’s no single right amount: the water sets the strength, not how much BPC-157 is in the vial, so use the volume on your pharmacy’s instructions. For example, 1 mL makes 10 mg/mL and 2 mL makes 5 mg/mL; the table below shows what each volume means on a U-100 syringe.
Your BPC-157 vial
Syringe
1 mL · 2-unit marks
Work backwards
Find the water for a given reading in units.
Enter your numbers to see the result.
Enter your numbers
This is arithmetic, not medical advice. Confirm with your prescriber or pharmacist.
How our calculator worksAdvanced
Vial capacityOptional
The volume printed on the vial or its box, not the mg. We’ll tell you if the water won’t fit.
What each volume makes
| Water | Strength | Each unit | 1 mg is |
|---|---|---|---|
| 1 mL | 10 mg/mL | 100 mcg | 10 units |
| 2 mL | 5 mg/mL | 50 mcg | 20 units |
| 2.5 mL | 4 mg/mL | 40 mcg | 25 units |
Examples; use the volume on your pharmacy’s instructions. Units are on a U-100 syringe: 100 units = 1 mL.
About the 10 mg vial
Sold as an injectable powder, with no human data on injecting it under the skin
The FDA found websites marketing BPC-157 as a freeze-dried powder for injection, including 10 mg injection products. Yet it found no human pharmacokinetic data for BPC-157 given under the skin, by mouth, in the nose or through the skin. The five human studies it identified gave BPC-157 as a rectal enema (two studies), an injection into the knee, an injection into the bladder, or an IV infusion in two people (FDA briefing, 2026). The first placebo-controlled trial of BPC-157 injected under the skin, in hamstring strains, began recruiting in February 2026 and has no results yet (NCT07437547). A trial after rotator cuff surgery is not yet recruiting (NCT07803250).
A misread line costs more in a strong mix
Each line on a U-100 syringe is 0.01 mL, so what one unit holds depends on how much water went in. In this vial, a unit holds 100 mcg with 1 mL, 50 mcg with 2 mL and 40 mcg with 2.5 mL. A one-unit misread at 1 mL is two and a half times the error it would be at 2.5 mL. More water means more units to draw for the same prescribed amount, with less in each line. At the same water, this vial is also twice as strong as the 5 mg vial, so a reading from one never transfers to the other. The calculator above shows where your reading falls on a 30, 50 or 100-unit syringe.
More draws per vial, and no tested in-use time
At the same prescribed amount, a 10 mg vial holds twice as many draws as a 5 mg vial, so it stays mixed and punctured for longer. No official or validated in-use period exists for mixed BPC-157: no approved product means no label sets one. The FDA found quality data such as impurities, aggregates and microbial quality lacking, and says a peptide’s stability and immune properties are highly sensitive to how the product is made. In its immune-risk section it notes that peptides with as few as two amino acids have been shown to aggregate, and that injection under the skin generally carries a higher immune risk than taking a peptide by mouth (FDA briefing, 2026). Ask a pharmacist how long your vial lasts once mixed, and see how long reconstituted peptides last.
Sources for these notes
- FDA Briefing Document for BPC-157-Related Bulk Drug Substances (PCAC, July 23-24, 2026)U.S. Food and Drug Administration, 2026 (opens in a new tab)
- BPC 157 for Acute Hamstring Muscle Strain Repair, NCT07437547ClinicalTrials.gov, 2026 (opens in a new tab)
- Impact of BPC-157 on Recovery Following Rotator Cuff Repair Surgery, NCT07803250ClinicalTrials.gov, 2026 (opens in a new tab)
- FDA Briefing Document for BPC-157-Related Bulk Drug Substances (PCAC, July 23-24, 2026)U.S. Food and Drug Administration, 2026 (opens in a new tab)
About BPC-157
US regulatory status
Not approved for human use in the US
BPC-157 is not approved by the FDA for any use, and no country has approved a BPC-157 medicine. As of April 2026 the FDA lists it among substances whose nominations were withdrawn from its Category 2 safety-risk list; it is not in Category 1. In July 2026 an FDA advisory committee narrowly voted, against FDA staff advice, to recommend adding it to the 503A bulks list. That vote is not binding, and as of October 16, 2026 the FDA had not published a proposed or final rule. WADA bans it at all times (S0).
As of
Sources (6)
- Certain Bulk Drug Substances for Use in Compounding that May Present Significant Safety RisksU.S. Food and Drug Administration, 2026 (opens in a new tab)
- Bulk Drug Substances Nominated for Use in Compounding Under Section 503A of the FD&C Act (updated May 14, 2026)U.S. Food and Drug Administration, 2026 (opens in a new tab)
- FDA Briefing Document for BPC-157-Related Bulk Drug Substances (PCAC, July 23-24, 2026)U.S. Food and Drug Administration, 2026 (opens in a new tab)
- July 23-24, 2026: Meeting of the Pharmacy Compounding Advisory CommitteeU.S. Food and Drug Administration, 2026 (opens in a new tab)
- FDA advisers narrowly vote to add 6 peptides to a drug compounding list. What’s next?ABC News, 2026 (opens in a new tab)
- World Anti-Doping Code International Standard: Prohibited List 2026World Anti-Doping Agency, 2026 (opens in a new tab)
How this BPC-157 calculator works
This BPC-157 reconstitution calculator starts from the 10 mg in your vial. Add the water you mix it with and the dose your prescriber gave you; it divides the mg by the mL to get the strength, then turns your dose into mL and units on a 30, 50 or 100-unit syringe.
Peptinote never suggests a dose or a water volume. The example volumes are there to make the math easy to check, not as advice. For the full method, see the peptide calculator.
Questions people ask
How much bacteriostatic water for 10 mg BPC-157?
There’s no single right amount: use the volume on your pharmacy’s instructions. The water only sets the strength; the vial still holds 10 mg however much you add. With 1 mL it’s 10 mg/mL (100 mcg per unit), with 2 mL 5 mg/mL (50 mcg per unit) and with 2.5 mL 4 mg/mL (40 mcg per unit). Enter your volume and prescribed dose above to get the units. This product isn’t FDA-approved, so no official label sets a water volume and its contents aren’t verified.
How much bac water to mix with BPC-157 10 mg?
Whatever volume you add, only the strength changes; the vial still holds 10 mg. More water spreads it out, so each unit holds less and the same dose takes more units: easier to measure, but more liquid to inject. Going from 1 mL to 2.5 mL takes each unit from 100 mcg to 40 mcg. Check the volume on your pharmacy’s instructions first. This product isn’t FDA-approved, so no official label sets a water volume and its contents aren’t verified.
How much bacteriostatic water do you mix with BPC-157?
Use the volume your pharmacy specifies, and never more than the vial itself can hold (its size in mL, not the 10 mg on the label). If you weren’t given a volume, ask a pharmacist before mixing. For reference, the bac water calculator shows the arithmetic: water (mL) = vial mg × units ÷ (dose mg × 100). This product isn’t FDA-approved, so no official label sets a water volume and its contents aren’t verified.
How do I reconstitute BPC-157 10 mg?
Wipe both stoppers with alcohol and let them dry. Draw the volume of bacteriostatic water your pharmacy specifies into a new syringe, add it slowly down the inside of the vial, then swirl gently until clear; don’t shake. Label it with the strength: 10 mg in 1 mL is 10 mg/mL. Full steps: how to reconstitute peptides.
What are the mixing instructions for BPC-157?
Mixing your BPC-157 10 mg vial takes the bacteriostatic water your pharmacy specifies and a new sterile syringe. Add the water slowly against the glass and swirl, never shake, until the liquid is clear. If it stays cloudy or has particles, don’t use it; call your pharmacy. Then write the strength and date on the vial and store it as the label says (how to store peptides).
Is there a peptide calculator for BPC-157?
This page is the BPC-157 10 mg reconstitution calculator. Enter the water you add (or tap an example volume) and your prescribed dose, and it shows the units to draw on a 30, 50 or 100-unit syringe, the strength, and the doses in the vial, with every step of the math. It never suggests a dose.
Can Peptinote tell me how many units to take?
No. Peptinote never suggests a dose. Enter the dose your prescriber gave you, and the calculator shows how to measure it: the units, the mL and where the line sits on your syringe, with every step of the math. If you aren’t sure what your dose is, ask your prescriber or pharmacist before drawing anything. How our calculator works.
Other BPC-157 vial sizes
Related
Calculators
Learn more
Every result is plain arithmetic from formulas we publish in full and check with automated tests. Peptinote doesn’t suggest doses and never sells or links to sellers of peptides.