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In colorectal cancer, epidermal growth factor receptor (EGFR) inhibitors like cetuximab and panitumumab are prescribed in RAS wild-type tumours, whereas angiogenesis is suppressed using VEGF inhibitors such as bevacizumab

Nobody has published human pharmacokinetics showing what happens to the copper after a subcutaneous GHK-Cu injection: how much dissociates locally, how much reaches the liver, whether repeated administration accumulates, what happens to ceruloplasmin and serum copper over weeks

Convenience is the absolute primary driver and systemic effects are a secondary, or even non-existent, concern

Only delivered in a medical clinic by a licensed provider