Both compounds independently cause nausea, vomiting, diarrhea, and constipation - especially during dose increases
Metabolic communication in the tumour-immune microenvironment
In research environments, copper peptide GHK-Cu is extensively studied for its role in cellular communication, tissue repair, and regenerative signalling pathways
Progress should be tracked with symptoms and function changes
Factors determining percutaneous metal absorption
Their review argued that the original sequence determination was performed once and not re-verified by modern methods, and that endogenous DSIP-like immunoreactivity in mammalian tissue may reflect related peptides rather than the synthetic nonapeptide as drawn (Kovalzon & Strekalova, 2006)