Individuals with pre-diabetes , Type 1 or Type 2 diabetes , or metabolic syndrome should avoid IGF-1 peptides unless under direct medical supervision.
However, produced by unregulated compounding companies (the so-called gray market, and mainly originating from China), there is no guarantee that the purchased product even contains BPC 157, let alone other contaminants that might cause allergic or other adverse reactions
Natural Antioxidants from Plant Extracts in Skincare Cosmetics: Recent Applications, Challenges and Perspectives
Nature 365: 185188 Winter J, Klappa P, Freedman RB, Lilie H, Rudolph R (2002) Catalytic activity and chaperone function of human proteindisulfide isomerase are required for the efficient refolding of proinsulin