Has anyone had PRP injections along with HGH? What was your experience? I need to find out how many cc's of HGH is used with PRP. I have an ND that gives me PRP injections for my knee, but I haven't gotten any improvement. I am wondering if HGH may improve the result, he will add it to the PRP injection for me but I need to know how much HGH is typically injected when in combination with PRP. Any help would be greatly appreciated. Thanks.