Its this stuff: http://www.dymatize.com/mivastore/merchant.mvc?Screen=PROD&Store_Code=DBE&Product_Code=P110 Dymatize ISO100, its 100% hydrolized whey isolate so it dissolves completely into water, and it tastes ridiculously good, I got the Fuzzy Navel flavour, and its good in water, but with oranage juice, it tastes exactly like tang, its ridiculously good. I've been eating 3 shakes a day rather than 1 post workout. I don't work for them or anything I've just had a lot of shitty tasting/mixing proteins so I'm happy with this one. Its a bit expensive but I get it at the MuscleMag outlet here in Toronto for $24/ 2lb, which isn't too bad. (CDN $). Thought I'd let you guys know. Edit: If you go to their Internet SPecials section they have buy one, get one half price + free shaker bottles, I'd do it if I didn't get it cheap here. Edit: Just tried it mixed with crystal light rasberry, its ridiculous, my friend (girl, who doesn't workout) was drinking it with me because she liked the taste when I made her try it - thats 4 shakes for me today.