For my standard PCT (along with a SERM) I usually run something like PCT assist or Recycle. And then some type of cortisol control (supress-c) around 2nd or 3rd week. Also, I like to start running a lose dose OTC AI around 2nd/3rd week of PCT and continue for several weeks thereafter. Now, other supps like creatine/pre-workout, etc. are optional (I use them). But for just PCT, I use SERM, natural test boost, cortisol control, and low dose AI post pct and consider these staples for any PCT.