ghk-cu copper coordination structure (glycyl-L-histidyl-L-lysine complex) is a naturally occurring tripeptide bound to a copper ion. It is formed by the of the peptide GHK with copper (Cu²⁺) and has been identified in Copper Peptides and Coordination Chemistry:

Because there is no combination-level trial, this timeline is a synthesis of the individual-peptide literature and the protocols own structure treat it as a framework for observation, not a guarantee

GPCR knock-out mice, which lack functional GPCRs, are used as research tools to study the role of GPCRs in various physiological processes

Thus, in a physiological context, it was difficult to imagine that PrP plays a significant role in hepatic Cu uptake

The Reality: DSIP Is Not an Approved Treatment DSIP is: Not FDA approved Not prescribed in addiction treatment programs Not included in clinical guidelines for opioid use disorder Even though it sounds promising on the surface, theres no strong evidence showing that DSIP can: Reduce cravings Prevent relapse Replace evidence-based treatments Its being discussed far more in online communities and experimental spaces than in real medical settings