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Basics & Technique

How do I reconstitute a 5 mg BPC-157 vial?

Updated 2026-05-05

Add 2 mL of bacteriostatic water to a 5 mg BPC-157 vial. That gives you 2.5 mg per mL. On a U-100 insulin syringe, 10 units equals 250 mcg of BPC-157, and 20 units equals 500 mcg. Run the water down the side of the vial, swirl gently, and let it sit until clear. Store the mixed vial in the fridge and use within 28 days.

IfIf your dose is 250 mcg
Thenthen draw 10 units on a U-100 insulin syringe
IfIf your dose is 500 mcg
Thenthen draw 20 units on a U-100 insulin syringe
IfIf you only have a 1 mL standard syringe
Thenthen 0.1 mL = 250 mcg, 0.2 mL = 500 mcg
IfIf the powder still has clumps after a minute
Thenthen let the vial sit at room temperature 5 minutes and swirl again - never shake
Key facts
  • 5 mg vial + 2.0 mL bac water = 2.5 mg/mL final concentration
  • On a U-100 syringe at 2.5 mg/mL, 1 unit = 25 mcg of BPC-157
  • Common starting dose is 250-500 mcg once daily for 4-8 weeks
  • Bacteriostatic water keeps the mix sterile for about 28 days at fridge temperature
  • Some sources reconstitute with 3 mL for easier titration math (1.67 mg/mL); both are valid
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