I have had great experience with Geneza Pharm, Prima100. It is fairly painless and strong. I started with 6-700mg EW. After a few weeks, I felt it was a little too much for me. I kept reducing the dose until I got to 450mg EW. It's high quality stuff. I've also had a couple female clients do very well on it. With something like primo, the true test is when you see how a girl responds. They have done well without unwanted sides.