ghk-cu tolerance desensitization long-term use efficacy or or loss of effectiveness GHK-Cu is the Copper Peptide (GHK-Cu): Clinical Uses,
Description
All dosing is speculative because rat studies used intraperitoneal administration that doesnt directly translate to human routes

Characterisation of enterovirus RNA detected in the pancreas and other specimens of live patients with newly diagnosed type 1 diabetes in the DiViD study

The regulatory landscape continues to evolve verify current status before purchasing

For bigger doses, like 2000 mcg, you need 2 mL

Dose frequency should relate to the severity of the deficiency