Glutathione has a strong safety profile , especially when licensed professionals use medical-grade formulations
It contains two D-amino acids, and D and L forms have identical mass, so mass spectrometry cannot confirm stereochemistry on its own
A complete overview of their mechanisms and combined use
Study records: PCO-02 safety and pharmacokinetics trial, Pentadecapeptide BPC 157 for Acute Grade II Hamstring Strain (NCT07437547), Intra-articular injection of BPC 157 for multiple types of knee pain, Safety of Intravenous Infusion of BPC157 in Humans: A Pilot Study, Emerging Use of BPC-157 in Orthopaedic Sports Medicine: A Systematic Review, A new gastric juice peptide, BPC, and characterization of its 15 amino acid fragment BPC 157, BPC-157 protection against gastric and duodenal lesions in rat ulcer models Evidence boundary: These records do not test the vial, capsule, nasal-spray, and topical formats observed in the research-use market, and the preclinical findings do not establish human efficacy for any indication