Most of the available research on BPC-157 comes from preclinical studies, including experiments in rat models and other animal systems
The Role of Supporting Ingredients with Glutathione While Glutathione alone is effective, its performance improves significantly when combined with complementary ingredients

Abbreviations ARI: Aripiprazole BDNF: Brain-derived neurotrophic factor BSO: L-buthionine-(S, R)-sulfoximine CAT: Catalase CpG: Cytosine-guanine Cys: Cysteine CBS: Cystathione -synthase DA: Dopamine ESC: Escitalopram GABA: Gamma-aminobutyric acid GBR: 12909 1-[2-[Bis-4(fluorophenyl)methoxy]ethyl]-4-3-(3-phenylpropyl) GCL: Glutamate-cysteine ligase GCLC: Glutamate-cysteine ligase catalytic subunit GCLM: Glutamate-cysteine-ligase modifier subunit GPx: Glutathione peroxidase GR: Glutathione reductase GSH: Glutathione GSSG: Glutathione disulfide Hcy: Homocysteine hpGPx: Human plasma glutathione peroxidase 5-HT: Serotonin MAO: Monoamine oxidase Met: Methionine MIR: Mirtazapine MST: Mercaptopyruvate sulfurtransferase NAC: N-acetylcysteine NMDA: N-acetyl- D -aspartate acid ODS: Osteogenic Disorder Shionogi ROS: Reactive oxygen species SAM: S-adenosyl-methionine SOD: Superoxide dismutase References Lewis DA, Lieberman JA

Your stomach produces hydrochloric acid (pH 1.5-3.5) and pepsin, both of which cleave peptide bonds
it is continuously recycled back into its active state
For a mechanism-level comparison of how the two differ, see the monograph BPC-157 vs TB-500 research, or browse related reference materials in the tissue repair category