BPC-157 Series • Regenerative Research
Mixing BPC-157 with Bac Water:
Ratios, Ratios & Calculator
The definitive guide for reconstituting BPC-157 research vials. Learn the precise Bacteriostatic Water volumes for 5mg and 10mg healing peptides.
The Standard BPC-157 Reconstitution Protocol
Reconstituting BPC-157 (Body Protective Compound-157) requires a delicate touch and mathematical precision. As a synthetic pentadecapeptide, BPC-157 is highly stable compared to other proteins, but the volume of Bacteriostatic Water (Bac Water) you add is the only way to ensure your micrograms (mcg) per unit are accurate for study.
Custom BPC-157 Reconstitution Calculator
Use the inputs below to calculate your specific mixing ratio. This tool supports custom vial weights (e.g. 5mg or 10mg) and provides your draw volume in syringe units.
Long-Tail Search Reference
How Much Bac Water for 5mg BPC-157?
The standard research volume for a 5mg BPC-157 vial is 2.0mL of Bacteriostatic Water. This creates a concentration of 2.5mg/mL. At this ratio, a common study dose of 250mcg is exactly 10 units on a standard U100 insulin syringe. For researchers who prefer a less concentrated solution, adding 2.5mL of water will make a 250mcg dose equal to 12.5 units.
How Much Bac Water for 10mg BPC-157?
When working with a larger 10mg BPC-157 vial, it is common to add 2.0mL or 4.0mL of Bac Water. Adding 2.0mL creates a concentrated 5mg/mL solution (500mcg per 10 units), while adding 4.0mL maintains the more common 2.5mg/mL concentration (250mcg per 10 units).
Reconstituting BPC-157 with GHK-Cu
In many regenerative protocols, BPC-157 is co-reconstituted or studied alongside GHK-Cu. If mixing both in a single study environment, researchers must account for the different molecular weights to ensure the diluent volume provides enough room for both lyophilized powders to fully dissolve without clumping.
BPC-157 Dosing & Ratio Reference Table
Common mixing ratios for BPC-157 using a standard 1mL (U100) syringe.
| Vial Weight | Bac Water Added | Concentration | Units for 250mcg |
|---|---|---|---|
| 5mg Vial | 1.0 mL | 5.0 mg/mL | 5 Units |
| 5mg Vial | 2.0 mL | 2.5 mg/mL | 10 Units |
| 5mg Vial | 2.5 mL | 2.0 mg/mL | 12.5 Units |
| 10mg Vial | 2.0 mL | 5.0 mg/mL | 5 Units |
| 10mg Vial | 4.0 mL | 2.5 mg/mL | 10 Units |
| 10mg Vial | 5.0 mL | 2.0 mg/mL | 12.5 Units |
Why USP-Grade Hospira® Bac Water is Required
BPC-157 research protocols often involve daily study withdrawals. To maintain the “Chain of Sterility” over the lifespan of the vial, it is essential to use Genuine Hospira® Bacteriostatic Water. Its guaranteed 0.9% benzyl alcohol preservative inhibits bacterial growth, ensuring the pentadecapeptide remains stable for the full 28-day window.