BPC-157 Dosage Calculator: Reconstitution and Units

To calculate BPC-157 dosage, divide your target dose (mg) by the vial concentration. Concentration = vial mg ÷ BAC water mL. For a 5 mg vial with 2 mL BAC water: concentration is 2.5 mg/mL. A 0.25 mg dose equals 0.1 mL (10 U-100 units) on a standard insulin syringe.

Example BPC-157 Dosage Table

Common vial and BAC water combinations with calculated concentration, draw volume, and U-100 syringe units. For education only — verify your vial label before use.

Vial (mg)	BAC water (mL)	Concentration	Dose (mg)	Draw (mL)	U-100 units
5 mg	2 mL	2.5 mg/mL	0.25 mg	0.1 mL	10 units
5 mg	2 mL	2.5 mg/mL	0.5 mg	0.2 mL	20 units
5 mg	2 mL	2.5 mg/mL	1 mg	0.4 mL	40 units
10 mg	2 mL	5 mg/mL	0.25 mg	0.05 mL	5 units
10 mg	5 mL	2 mg/mL	0.5 mg	0.25 mL	25 units

How to Calculate BPC-157 Dosage

Three steps convert any vial and BAC water combination into the exact volume to draw on a U-100 insulin syringe.

Step 1 — Calculate concentration (mg/mL)
Divide the total peptide in the vial (mg) by the volume of BAC water you added (mL). For example: a 5 mg BPC-157 vial reconstituted with 2 mL BAC water gives 5 ÷ 2 = 2.5 mg/mL.
Step 2 — Calculate draw volume (mL)
Divide your target dose (mg) by the concentration (mg/mL). For a 0.5 mg dose at 2.5 mg/mL: 0.5 ÷ 2.5 = 0.2 mL. This is the exact volume to draw into the syringe.
Step 3 — Convert to U-100 syringe units
Multiply the draw volume (mL) by 100. For 0.2 mL: 0.2 × 100 = 20 U-100 units. Read this number on the unit markings of a standard insulin syringe.

Dosage Formula

Concentration formula

Concentration (mg/mL) = Vial mg ÷ BAC water mL

Draw volume formula

Draw volume (mL) = Dose (mg) ÷ Concentration (mg/mL)

U-100 syringe units

U-100 units = Draw volume (mL) × 100

These three formulas apply to any BPC-157 vial, regardless of size. U-100 is the standard insulin-syringe scale: 100 units = 1 mL.

BPC-157 Calculator Tool

Enter your vial strength, BAC water volume, and target dose below. The calculator outputs concentration (mg/mL), draw volume (mL), and U-100 units. Educational and research use only.

Example BPC-157 Calculations

Step-by-step worked examples using common vial sizes. Results are for illustrating the math only.

5 mg vial + 2 mL BAC water, 0.25 mg dose

Vial: 5 mg | BAC water: 2 mL | Target dose: 0.25 mg
Concentration: 5 ÷ 2 = 2.5 mg/mL
Draw volume: 0.25 ÷ 2.5 = 0.1 mL
U-100 units: 0.1 × 100 = 10 units

5 mg vial + 2 mL BAC water, 0.5 mg dose

Vial: 5 mg | BAC water: 2 mL | Target dose: 0.5 mg
Concentration: 5 ÷ 2 = 2.5 mg/mL
Draw volume: 0.5 ÷ 2.5 = 0.2 mL
U-100 units: 0.2 × 100 = 20 units

BPC-157 Reconstitution Guide

BPC-157 is typically supplied as a lyophilised powder. Reconstitute with bacteriostatic water (BAC water):

Wipe the vial stopper and BAC water vial with an alcohol swab.
Draw your chosen BAC water volume (commonly 2 mL for a 5 mg vial) into a sterile syringe.
Inject slowly along the vial wall — do not spray onto the powder or agitate aggressively.
Gently roll or swirl until fully dissolved. The solution should be clear and colourless.
Store refrigerated (2–8 °C). Use within 4 weeks for best stability.

BPC-157 is often discussed at doses between 200 mcg (0.2 mg) and 500 mcg (0.5 mg) in research contexts. Convert mcg to mg by dividing by 1000.

Frequently Asked Questions

How do I calculate the BPC-157 draw volume?

Divide your target dose (mg) by the concentration (mg/mL). Concentration = vial mg ÷ BAC water mL. For a 5 mg vial + 2 mL BAC: 2.5 mg/mL. For 0.25 mg dose: 0.25 ÷ 2.5 = 0.1 mL = 10 U-100 units.

What are U-100 syringe units?

U-100 is the standard scale for insulin syringes. 100 units = 1.0 mL. That means 10 units = 0.1 mL, 50 units = 0.5 mL. Multiply any draw volume in mL by 100 to get the U-100 units reading.

Do I need to recalculate if I change the amount of BAC water?

Yes. Changing BAC water volume changes the concentration (mg/mL), which changes the draw volume for the same mg dose. Always recalculate using: concentration = vial mg ÷ BAC water mL, then draw volume = dose mg ÷ concentration.

How do I convert mcg to mg for the calculator?

Divide mcg by 1000 to get mg. For example: 250 mcg = 0.25 mg, 500 mcg = 0.5 mg, 1000 mcg = 1 mg. Enter the mg value in the calculator.

What is BPC-157?

BPC-157 (Body Protection Compound-157) is a synthetic 15-amino-acid peptide studied in tissue and gut research contexts. This calculator provides only the reconstitution math — it does not provide dosing recommendations.

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For educational and research purposes only. Not medical advice. Consult a licensed healthcare professional before making any medical or health-related decisions.