What is BPC-157?
People searching for BPC-157 dosage usually have a vial in hand and need the math: how much BAC water to add, what concentration that creates, and where a given amount lands on a U-100 syringe. This page covers exactly that. It converts numbers you already have and never suggests an amount.
BPC-157 is a synthetic peptide made of 15 amino acids, which makes it a pentadecapeptide. The name stands for “Body Protection Compound,” and its sequence was derived from a protein found in human gastric juice. It is sold as a white freeze-dried powder in research-labeled vials, most often 5 mg and 10 mg, with 20 mg vials also widely listed. It is not an FDA-approved drug, and a vial’s label is the only source for how much powder it actually contains.
How much BAC water for a BPC-157 vial?
The BAC water volume does not change how much BPC-157 is in the vial. It changes how concentrated the solution is. Less water packs more micrograms into each syringe unit; more water spreads them out, so the same amount takes up more units and is easier to read on small markings. The chart shows micrograms per U-100 unit for the common vial sizes at several water volumes.
| BAC water | 5 mg vial | 10 mg vial | 20 mg vial |
|---|---|---|---|
| 1 mL | 50 mcg/unit 5 mg/mL | 100 mcg/unit 10 mg/mL | 200 mcg/unit 20 mg/mL |
| 2 mL | 25 mcg/unit 2.5 mg/mL | 50 mcg/unit 5 mg/mL | 100 mcg/unit 10 mg/mL |
| 3 mL | 16.67 mcg/unit 1.667 mg/mL | 33.33 mcg/unit 3.333 mg/mL | 66.67 mcg/unit 6.667 mg/mL |
| 4 mL | 12.5 mcg/unit 1.25 mg/mL | 25 mcg/unit 2.5 mg/mL | 50 mcg/unit 5 mg/mL |
Each cell shows mcg per unit on a U-100 syringe (100 units = 1 mL) and the resulting concentration.
Two patterns are worth noticing. Doubling the vial size at the same water volume doubles the micrograms per unit, and doubling the water at the same vial size halves it. That is why a BPC-157 20mg reconstitution with twice the water lands on the same concentration as a 10 mg vial: the ratio of mg to mL is what matters, as the BAC water to peptide ratio guide explains.
BPC-157 reconstitution calculator: worked example
Every result from the BPC-157 reconstitution calculator comes from three steps: vial mg ÷ water mL = mg per mL; amount ÷ concentration = mL; and mL × 100 = units on a U-100 syringe. Using a 10 mg vial, for example, if the amount you already have is 275 mcg:
The math: 10 mg ÷ 2 mL = 5 mg/mL (5,000 mcg/mL), which is 50 mcg per unit. 275 mcg ÷ 5,000 mcg/mL = 0.055 mL = 5.5 units on a U-100 syringe.
Now a 20 mg vial mixed with twice the water. For example, if the amount you already have is the same 275 mcg:
The math: 20 mg ÷ 4 mL = 5 mg/mL (5,000 mcg/mL), which is 50 mcg per unit. 275 mcg ÷ 5,000 mcg/mL = 0.055 mL = 5.5 units on a U-100 syringe.
The answers match because the concentrations match. Whether you read a 0.3 mL, 0.5 mL, or 1 mL U-100 syringe, each unit is the same size; only the total capacity differs. The U-100 syringe units to mL chart lays out the full conversion.
BPC-157 dosage chart: what the numbers mean
A BPC-157 dosage chart on this site is a conversion table, not a dosing table. It answers one question: at this vial size and this water volume, how many micrograms sit in each unit on the syringe? The calculator goes one step further and converts a specific amount you already have into mL and units.
Nothing on this page sets a BPC-157 dosage, frequency, duration, or route, and no row in the chart is a recommendation. Those decisions belong to the product labeling and a qualified professional. If you want to verify any result by hand, the peptide calculator math check walks through the same formula with three worked examples.
BPC-157 instructions from suppliers: reconstitution notes
When people look for BPC-157 instructions, what suppliers actually publish is usually short. Common points include:
- Solvent. BPC-157 vials are commonly listed for bacteriostatic water; some suppliers specify sterile water instead. The label’s instruction takes priority over any general guide.
- Mixing. Some suppliers advise letting the water run down the inside wall of the vial and swirling gently rather than shaking.
- Salt form. Some vials name a specific salt form on the label. The calculator uses whatever total mg the label prints; it cannot adjust for formulation.
- Storage. Some suppliers specify refrigeration after mixing. A punctured BAC water vial follows its own label and the common 28-day guidance for opened multi-dose vials.
For the general sequence of steps, see how to mix peptides with BAC water. Handling and sterility should follow the product labeling and a qualified professional.
Is BPC-157 FDA-approved?
No. BPC-157 is not an FDA-approved drug. FDA includes BPC-157 on its list of bulk drug substances used in compounding that may present significant safety risks. Research-labeled vials sold online are not approved medicines, and their identity, purity, and sterility depend entirely on the supplier. A correct calculation cannot confirm any of those things.
BPC-157 FAQ
Does this page tell me a BPC-157 dosage?
No. The calculator converts an amount you already have into concentration, mL, and U-100 syringe units. It does not recommend an amount, frequency, or route; those belong to the product labeling and a qualified professional.
How much BAC water goes in a 5 mg BPC-157 vial?
There is no single correct volume. More water makes a weaker solution that is easier to read on a syringe, less water makes a stronger one. The chart shows micrograms per unit for several volumes, and any volume on the product label takes priority.
How do I calculate a BPC-157 20 mg reconstitution?
Enter 20 mg as the vial size and the water volume you are working with. Concentration is vial mg divided by water mL, and the calculator converts your amount into mL and syringe units from there.
Are syringe units the same as milligrams?
No. A syringe unit is a volume: on a U-100 syringe, 100 units equal 1 mL. How much BPC-157 a unit holds depends on the vial size and the water volume.
Is BPC-157 FDA-approved?
No. BPC-157 is not an FDA-approved drug, and FDA lists it among bulk drug substances that may present significant safety risks in compounding.