Peptide reference
BPC-157: Reconstitution Math & Reference
By Baris Bingor · Last updated
How do you reconstitute BPC-157?
BPC-157 reconstitution is arithmetic: divide the vial mass (mg) by the volume of bacteriostatic water added (ml) to get the concentration in mg/ml. A 5 mg vial with 2 ml BAC water yields 2.5 mg/ml. Drawing 10 units on a U-100 insulin syringe (0.1 ml) then delivers 250 mcg. The calculator below does it for any numbers you type.
Reconstitution calculator
Type your own numbers. They aren't sent anywhere: the math runs in your browser.
Type an amount to see the volume and the units.
Arithmetic only. Peptly does not suggest amounts: the amount is yours, from your protocol or the product's documentation. Not medical advice.
What is BPC-157?
BPC-157 is a synthetic pentadecapeptide — a 15-amino-acid fragment derived from a protective protein originally isolated from human gastric juice.
BPC-157 (Body Protection Compound-157) is studied in the peer-reviewed literature primarily in animal models exploring tissue healing, angiogenesis, and gastrointestinal mucosa protection. It has not been approved by the FDA for human use.
Common research storage formats are 5 mg or 10 mg lyophilized powder. Once reconstituted, most research protocols keep the solution refrigerated and use within 2-4 weeks.
Reconstitution math — reference table
| Vial | BAC water | Concentration | Example dose | U-100 units |
|---|---|---|---|---|
| 5 mg | 1 ml | 5 mg/ml | 250 mcg | 5 units |
| 5 mg | 2 ml | 2.5 mg/ml | 250 mcg | 10 units |
| 5 mg | 3 ml | 1.67 mg/ml | 250 mcg | 15 units |
| 10 mg | 2 ml | 5 mg/ml | 500 mcg | 10 units |
| 10 mg | 3 ml | 3.33 mg/ml | 500 mcg | 15 units |
Storage and shelf-life
Most research protocols refrigerate reconstituted BPC-157 at 2–8 °C and use within 2–4 weeks. Lyophilized powder typically stores at −20 °C until reconstitution.
BPC-157 in the Peptly app
- A plain-language profile in the library — no amounts, frequencies or regimens.
- Entries exactly as you type them — the app never calculates, converts or suggests an amount.
- Today and reminders — log or skip each entry in one tap, on the schedule you set.
- Injection-site rotation — Peptly suggests the site you used longest ago, other than the last one.
- Private by design — no account; your log stays on your phone.
Other peptide references
- TB-500 reconstitution math — TB-500 is a 17-amino-acid synthetic peptide fragment of Thymosin Beta-4, a regulatory peptide naturally present in most mammalian cells.
- Semaglutide reconstitution math — Semaglutide is a 31-amino-acid GLP-1 receptor agonist.
- Tirzepatide reconstitution math — Tirzepatide is a dual GIP/GLP-1 receptor agonist — a 39-amino-acid synthetic peptide.
- Ipamorelin reconstitution math — Ipamorelin is a 5-amino-acid synthetic peptide and a selective growth hormone secretagogue.
- CJC-1295 reconstitution math — CJC-1295 is a synthetic 30-amino-acid analog of growth hormone-releasing hormone (GHRH 1-29), modified for protease resistance.
- Retatrutide reconstitution math — Retatrutide (LY3437943) is an investigational triple-hormone-receptor agonist — it targets the GLP-1, GIP, AND glucagon receptors.
- Tesamorelin reconstitution math — Tesamorelin is a synthetic 44-amino-acid analog of human growth hormone-releasing hormone (GHRH 1-44), stabilized with a trans-3-hexenoic acid group.
- GHK-Cu reconstitution math — GHK-Cu is a copper complex of the naturally occurring tripeptide glycyl-L-histidyl-L-lysine (Gly-His-Lys), which binds a single copper(II) ion.
Related tools and guides
- Main peptide calculator overview
- Peptide reconstitution math reference
- BAC water calculator
- Step-by-step reconstitution guide
- Peptide storage & refrigeration guide
- Peptide dosage unit reference
- Peptide tracker — injection log
Frequently asked questions
What volume of bacteriostatic water should I add to a BPC-157 vial? +
There is no single correct volume — it depends on the dose you intend to draw and how many units you want per draw. The calculator on this page shows the unit count for any vial × water combination as you type.
Does the reconstitution math change between 5 mg and 10 mg BPC-157 vials? +
The math is identical — concentration equals vial mass divided by BAC water volume. A 10 mg vial in 2 ml gives 5 mg/ml; the same concentration as a 5 mg vial in 1 ml. In the Peptly app, Vials (Pro) keep each vial's details separately, exactly as you wrote them.
Why does this calculator use U-100 syringes for unit counts? +
U-100 insulin syringes are the most common in research settings. 100 units = 1 ml, so each "unit" mark is 0.01 ml. The calculator also shows the volume in ml, which reads on any syringe scale.
Can I keep a record of my BPC-157 vial? +
Yes, in the Peptly app: Vials (Pro) keep what the label says, the water added, the date and your notes, exactly as you wrote them, and each entry you log keeps the amount you typed. The app works nothing out from them; for the math, use the calculator on this page.
Is BPC-157 approved for human use? +
No. BPC-157 is not FDA-approved for human use. It is studied primarily in animal models in peer-reviewed research. This page is a math reference and the Peptly app is a log — neither is medical advice. Consult a licensed clinician for any health decision.