bpc 157 structure BPC-157: What Is the Gastric-Derived
Description
The difference between 4C and 25C storage can mean the difference between a vial lasting its full 28 days and losing significant potency within a week

Existing scars may flatten or soften, particularly newer scars (less than 2 years old)

You will feel the benefits of the B-12 injection within 48 to 72 hours of receiving the shot.

It tells you exactly how many units to draw
