Coriolus Super Strength is PSK. Traditionally, PSK is made in Japan and comes from a different strain of Coriolus compared to PSP, which is made in China, and they have somewhat different production methods. Both have been tested in clinical cancer trials. I have never seen any direct clinical comparison between PSP and PSK, so it's difficult to say if they're equivalent in efficacy or not.
May I ask which one did Ben williams use??
Ben used PSK.
When I asked Ben which one he recommended, he said PSP, but he did take PSK.