ghk-cu promotes tissue remodeling In situ photo-crosslinkable hyaluronic acid-based hydrogel embedded with GHK peptide nanofibers for bioactive wound healing GHK-Cu Peptide for Regenerative Signaling

In mouse models of insulin resistance, it significantly inhibits NNMT activity in liver and muscle, reduces NAM methylation, increases intracellular NAD+, activates the SIRT1 pathway, promotes phosphorylation of insulin receptor substrate 1 (IRS1), enhances insulin signaling, improves insulin sensitivity, and increases glucose uptake and utilization

EBioMedicine 2017, doi:10.1016/j.ebiom.2017.04.013

A: No, not in the cream form

Across this body of research, no significant toxicity has been reported at doses ranging from 1 g/kg to 10 mg/kg in rodent models

Elbow (epicondylitis): Inject 1 inch proximal to the lateral or medial epicondyle depending on the affected tendon