Here is some stuff for you to read:
http://www.bodybuilding.net/suppleme...highlight=scam
http://www.bodybuilding.net/suppleme...highlight=scam
http://www.bodybuilding.net/suppleme...ight=glutamine

As far as NO explode goes...you were probably more focused because of the caffeine or the placebo effect. And you were able to go longer because of maltodextrin in it...or because of the placebo effect. Definitely not worth the money. That is why I'm against NO explode...waste of money.

Cellmass is ridiculous. 100gr of CEE is $4.50 at nutraplanet.

The Nitrix and Glutamine I won't bother with. There is more than enough info in the links above.