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DSIP is a neuropeptide with a different mechanism of action it is studied for its broader influence on sleep architecture, stress hormone regulation, and neurotransmitter activity rather than simply sleep timing

This 2018 review by Loren Pickart (who originally discovered GHK-Cu in the 1970s) and Anna Margolina brings together decades of research and adds groundbreaking gene expression analysis showing that GHK-Cu affects nearly a third of all human genes

Timing Follow-up Marker ESR Why it matters Provides a slower-moving inflammation marker for chronic inflammatory symptoms

It is this breadth of documented laboratory activity that makes it particularly relevant across multiple research disciplines