While copper peptides broadly reference several compounds, GHK-Cu is the specific, most-researched variant with an established safety and efficacy profile in scientific literature
doi: 10.1111/j.1528-1167.2012.03666.x 92
To date, these important noninsulin glucose-lowering therapies have only received regulatory approval for use in T2D, obesity, sleep apnea, and metabolic dysfunction-associated steatohepatitis with moderate-advanced fibrosis, supported by randomized controlled trials (RCTs) and real-world data that demonstrate efficacy and safety
A 30 mg vial just lasts longer than a 20 mg vial
Body composition changes become more important than scale weight during this phase
And, that it can accelerate gastric emptying which helps with conditions characterised by delayed gastric emptying [7]