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 Wellness peptide craze: why people are injecting drugs 'not for human consumption' Cosmetic Grade Ahk cu + Ghk cu Powder Copper Tripeptide 1 Blue Copper Peptide GHK Copper 1g Tube Ghk cu Copper Peptide GHK CU Cosmetic for Healthy Skin Aging and Wrinkle Support Pure Prescriptions