Hey fellas. I am very interested in trying a ghrp/ghrh combo and I do understand the difference between the different compunds regarding prolactin/cortisol release, but I was wondering if anyone has any knowledge of how the ghrp's cause prolactin release in the pituitary and why some cause more of a realease than others. I am studying biochemistry and would be very interested to know. Is it just something that happens when gh is released?