Great ingredients for a stand alone test booster, or as an aid in PCT. Not sold on it's ability to limit shutdown on cycle though. It may prevent Atrophy and help with libido problems.. but won't do much for LH.
I've been using hcgenerate for years to stimulate LH while on cycle or cruising. It helps with testicular atrophy, well-being, and more. The ES version is the same but even more potent. Love this stuff!