A Dermatologist's Take on the Copper Peptide (GHK Cu) Trend Thermodynamically stable ionic liquid microemulsions pioneer pathways for topical delivery and peptide application ScienceDirect If your GHK injection site gets irritated try this , 1. Dilute it by adding more water to the syringe , 2. Let it sit until it reaches room temperature , Also, make sure youre rotating injection GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B GHK Cu Tripeptide 5 mg 60 Sublingual Tablets SuperSmart