I've tried the stuff. It works to some extent but I found I retained a lot of water. I gained 10 lbs on a 4 week cycle, but lost about 8 of it in the subsequent 4 weeks. Probably all fluid. As far as PCT. Don't waste your money on the Retain or any of their other crap they sell. It's all herbal and probably doesn't work very well if at all.
The stuff is real designer steroids and will shut you down like any steroid. If you're going to take anything I recommend taking real tried and true steroids and real PCT products. At least if you are dealing with a reputable pharmacy, you know what you're getting.
Anabolic Extreme doesn't bother to tell you what the PP is. Well I did my research into its chemical composition and found out it is Methyltestosterone with a slight twist; nasty stuff. And because it is a 17 Alpha it can be liver toxic, so don't take Tylenol or drink alcohol or anything else that taxes your liver while on the stuff even with the liver protection sups you're taking.
I hope this helps you out. Sorry if this isn't what you wanted to hear. Do some homework bro on steroids in general before you mess with anything including these OTC steroids.