BPC 157 is a peptide derived from protective protein of stomach and intestines. It has an important role in modulating the body's response to inflammation, essentially protecting it from damage caused by inflammatory processes. The recommended dosage for BPC 157 varies depending on the individual health and circumstances. Generally, a dose of 500 mcg (0.5mg) administered subcutaneously is the most common form of administration for this peptide with effects lasting up to 24 hours after injection.