Hey guys, I'm new to the site(read all the time but first post)so excuse any mess ups. First off I'm 39 and just went through rotator cuff surgery. Decided to start a hgh regamin to help with healing and other benefits. So a friend of mine got me some generic grey tops that he said everyone swears by. I'm mixing with bac and injecting 4iu in a day sub in my stomach. Both days I have a bruise at injection site, a knot that is red around and itchy. All my research says it's either allergic to the alcohol in the bac or the hgh is junk. I did get a small drop of blood at the two injections sights when I injected. Today I injected 3 in of just bac water to see if this was the cause. I injected a little lower and not as deep and had no blood. Any thoughts on this? I don't want to do any more till I figure out if it's junk or if I need to switch to saline or sterile water.