Cant believe what happen i have always used human made gear when i can and was lucky enough to get hold of some top grad sust250 everything oringinal manufatured in the netherlands for export, so thought would stick in 2ml well i had a lump in my arse for nearly 4weeks no pain no swelling just a lump couldnt figure out why deep injection thought maybe scare tissue but no, if i had the chance to get more think i would pass it up i was dissapointed lol.