Subcutaneous Injection Sites and Instructions for Safe Self Administration Why is the injection site painful after administering GHK Cu (Glycyl L Histidyl L Lysine Copper) 2mg mixed with normal saline? GHK CU 50 MG INJECTION at 6000 vial Jaripatka Nagpur ID: 2857531119188 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 50 mg LIVV