Peptides in Orthopedics: BPC 157 What Patients Should Know About Safety, Efficacy, and Sourcing The Centers for Advanced Orthopaedics: Maryland Orthopedic Specialists Division Shoulder Pain Relief & Treatment Glendale, AZ Non Surgical I've been using Pentadecapeptide (PDA) and the results have been unreal. this peptide is almost identical to BPC 157 with the exception of an additional marginate salt, which has contributed to I've been using Pentadecapeptide (PDA) and the results have been unreal. this peptide is almost identical to BPC 157 with the exception of an additional marginate salt, which has contributed to Frozen Shoulder Fix: Unlock Your Shoulder's Potential