I don’t think it’s as bad as the Iranian sustanon I’ve used. I find just a little discomfort with certain sites. You didn’t mention what brand you’re using. I’m using a gram/week of the Scherings from Turkey; that’s 2cc’s one day and 1cc the next all week. I did 2cc’s in my delts this morning and it’s not hurting one bit, but the 2cc’s I did two days ago in my rear is still a little uncomfortable. Go figure.