Had some npp 6 months ago. It was extremely painful post injection so I stopped and just continued with my hrt and hgh. Recently decided to run a blast w npp for collagen synthesis and one of the syringes of npp I had pre loaded 6 months ago all of the oil is black. 2 other pre loaded syringes not the case
Q:
-what could cause this
-why would npp be so painful
-should I ditch these 2 bottles and order more
Tia