u/labpep1

Hi, I keep getting red itchy bumps and irritation after injecting GHK-Cu. The spots become swollen and thick and usually disappear after a few days, but the reaction comes back every time I inject.
The first week I used 5 units and now I tried 10 units. I injected in my leg, stomach, and love handle area, but I get the same reaction everywhere. I mixed 50 mg with 3 ml bac water.
Do you know what could be causing this? Could it be irritation, the concentration, or maybe an allergic reaction