How to Reconstitute BPC-157: Complete Mixing Guide

Before mixing your BPC-157, ensure you have the following:

• BPC-157 lyophilized vial — Available in 5mg and 10mg sizes from quality suppliers like Ascension Peptides. Verify the exact amount on the vial label or COA.
• Bacteriostatic water (BAC water) — The recommended solvent for BPC-157 reconstitution. The 0.9% benzyl alcohol preservative allows multi-dose use for up to 28 days.
• Insulin syringes (1mL / 100 units) — 29–31 gauge for precise measurement and gentle vial puncture.
• Alcohol swabs — For sterilizing both vial stoppers before and during use.

BPC-157 is a 15-amino-acid peptide that dissolves readily in water. Reconstitution is straightforward compared to more complex peptides like tirzepatide or semaglutide.

Follow these steps to reconstitute BPC-157 properly:

1. Let the vial reach room temperature. Remove your BPC-157 from the freezer or refrigerator and let it sit for 5–10 minutes. Do not heat it.
2. Sterilize both vials. Wipe the rubber stoppers of the BPC-157 vial and the BAC water vial with alcohol swabs.
3. Decide how much BAC water to add. This depends on your desired concentration:
   

   Vial Size	BAC Water	Concentration	250mcg Dose
   5mg	1mL	5,000mcg/mL	5 units (0.05mL)
   5mg	2mL	2,500mcg/mL	10 units (0.1mL)
   10mg	2mL	5,000mcg/mL	5 units (0.05mL)

4. Draw up the BAC water. Using a fresh insulin syringe, draw the chosen amount of bacteriostatic water.
5. Inject against the vial wall. Insert the needle into the BPC-157 vial and release the water slowly against the inside glass wall — never directly onto the powder.
6. Let it dissolve. BPC-157 typically dissolves within 30–60 seconds. Gently roll the vial between your palms if any powder remains. Never shake.
7. Label and refrigerate. Mark the vial with the peptide name, concentration, and date. Store at 2–8°C.

Understanding the math behind BPC-157 dosing ensures accuracy in your research:

The formula: Concentration = Total Peptide (mcg) ÷ Volume of BAC Water (mL)

Example: A 5mg vial reconstituted with 2mL of BAC water:

• 5mg = 5,000mcg
• 5,000mcg ÷ 2mL = 2,500mcg per mL
• 1mL = 100 units on an insulin syringe
• Each unit = 2,500 ÷ 100 = 25mcg
• For a 250mcg dose: 250 ÷ 25 = 10 units

For a 10mg vial with 2mL BAC water: 10,000mcg ÷ 2mL = 5,000mcg/mL, so each unit = 50mcg and a 250mcg dose = 5 units.

Use our peptide reconstitution calculator for instant calculations.

Avoid these frequent BPC-157 reconstitution errors:

• Using too little BAC water. Adding only 0.25mL to a 5mg vial creates an extremely concentrated solution (20,000mcg/mL) where tiny measurement errors mean large dose variations. Use at least 1mL for practical dosing accuracy.
• Spraying water directly onto the powder. The force can damage the peptide structure. Always aim at the glass wall.
• Shaking the vial. BPC-157 dissolves easily — patience and gentle swirling is all you need.
• Leaving it at room temperature. Once reconstituted, BPC-157 degrades rapidly outside refrigeration. Return to the fridge immediately after drawing each dose.
• Not tracking reconstitution date. BAC water preservative effectiveness diminishes over time. Discard reconstituted BPC-157 after 28 days.

Handle BPC-157 with proper laboratory safety protocols:

• Always use sterile technique — fresh syringes, alcohol-swabbed vial tops, clean workspace.
• Store unreconstituted BPC-157 at -20°C for maximum shelf life.
• Dispose of sharps in approved containers.
• Inspect the solution before each use — discard if cloudy or discolored.

Disclaimer: BPC-157 is sold for research purposes only and is not for human consumption. This guide is intended for educational purposes. Ascension Peptides offers high-purity BPC-157 with third-party COA verification for researchers. Always comply with your local regulations and institutional guidelines.