Do you get injection site reactions from your GHK CU? , 3 tips to make it better, Room temp , Use a different injection site , Inject the medication sloowwwly , All in all even with injection HKH Copper Peptides Serum for Face 38 Caps Anti aging Facial Serum Capsules with Hyaluronic Acid GHK Cu 99%+ Pure Peptide Amino Club Amino Club Neurogan + Health GHK CU Copper Peptide 120 MCG Tablets PrettyStick 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 Peptides: Unlocking the Copper Peptide Revolution in Skin Care