This is one of the more genuinely interesting questions in the BPC-157 story, and the published record while incomplete does offer some real clues
"Toxicity of Glutathione-Binding Metals: A Review of Targets and Mechanisms"
Mem Inst Oswaldo Cruz 119:e220242 Arnold IC, Artola-Boran M, Tallon de Lara P, Kyburz A, Taube C, Ottemann K, van den Broek M, Yousefi S, Simon HU, Muller A (2018) Eosinophils suppress Th1 responses and restrict bacterially induced gastrointestinal inflammation
Key Drivers and Barriers in the Glutathione Agarose Resin Market The Glutathione Agarose Resin Market is driven by the rising demand for purification processes in biopharmaceuticals, increasing research activities in proteomics, and the need for efficient protein separation techniques
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