All I can contribute is that I've used 3 cans of the no xplode & it works real good in the begining but after about 2 or 3 wks the effects lessen. Never tried the cell mass. Hope it works for ya though!
I never workout without NOXplode. I love it and since I train DC style and only take it three times a week I still get the effects. Also it can be had really cheap. I only take 1 1/2 scoops prior to my workout so it last me a while.