How to Reconstitute BPC-157: Complete Guide

What You'll Need

Before you begin, gather the following supplies:

• BPC-157 vial (typically 5mg or 10mg lyophilized powder)
• Bacteriostatic water (BAC water) — sterile water with 0.9% benzyl alcohol
• Insulin syringes (U-100, 29-31 gauge)
• Alcohol swabs for sterilization
• A clean, well-lit workspace

Understanding Concentration

The concentration of your reconstituted solution depends on how much water you add:

Tip: Adding 2 mL of BAC water to a 5mg vial is a common choice — it makes the math easy and keeps injection volumes reasonable.

Step-by-Step Reconstitution

Step 1: Clean Everything

Wipe the tops of both the peptide vial and the BAC water vial with alcohol swabs. Let them air dry for 30 seconds.

Step 2: Draw Bacteriostatic Water

Using a fresh insulin syringe, draw your desired amount of BAC water. For a 5mg BPC-157 vial, 2 mL is a good starting point.

Step 3: Add Water to the Peptide Vial

Insert the needle through the rubber stopper at an angle. Aim the stream of water along the inside wall of the glass vial — never spray directly onto the powder cake. Let the water gently run down the side.

Step 4: Let It Dissolve

After adding water, gently swirl the vial or roll it between your palms. Never shake — this can denature the peptide and create foam. Most BPC-157 dissolves within 1-2 minutes. If you see any remaining particles, let the vial sit for a few minutes and swirl again.

Step 5: Verify the Solution

A properly reconstituted solution should be clear and colorless. If it appears cloudy, contains particles that won't dissolve, or has an unusual color, do not use it.

Storage Guidelines

• Refrigerate immediately after reconstitution (2-8°C / 36-46°F)
• Reconstituted BPC-157 is generally stable for 3-4 weeks when properly stored
• Never freeze a reconstituted solution
• Always use a new sterile needle when drawing doses
• Keep the vial upright in the refrigerator

Calculating Your Dose

Use our Reconstitution Calculator for precise dose calculations. The basic formula is:

Volume to inject (mL) = Desired dose (mcg) ÷ Concentration (mcg/mL)

For example, with 2 mL of water added to a 5mg vial:

• Concentration = 5,000 mcg ÷ 2 mL = 2,500 mcg/mL
• For a 250 mcg dose: 250 ÷ 2,500 = 0.10 mL = 10 IU on a U-100 syringe

Common Mistakes to Avoid

• Spraying water directly on the powder — always aim along the glass wall
• Shaking the vial — swirl gently instead
• Using regular saline instead of BAC water — BAC water contains a preservative that allows multi-dose use
• Storing at room temperature — always refrigerate after reconstitution
• Reusing needles — always use a fresh, sterile needle for each draw

Frequently Asked Questions

Can I use sterile water instead of BAC water?

Yes, but sterile water lacks the preservative (benzyl alcohol) that prevents bacterial growth. If you use sterile water, use the entire vial within 24-48 hours or prepare single-use aliquots.

How do I know if my BPC-157 has gone bad?

Signs include cloudiness, particles that won't dissolve, unusual color, or foul odor. When in doubt, discard and reconstitute a fresh vial.

Does the injection site matter for BPC-157?

Research suggests that subcutaneous injection near the injury site may provide more localized benefit, but systemic effects occur regardless of injection location.