I haven't heard of it. Is Creapure a brand name?
Creapure is a type of creatine exclusively manufactured in German laboratries I believe:
http://www.reflex-nutrition.com/sports_ ... t_37_4.php
If I remember right James, Reflex creapure creatine is cheap - hardly any more than normal creatine - so shop around for it on the net at a few online supplement sites. Give it a try, it has had good reviews and feedback.
Creatine - with or without Creapure - used to give my terrible cramp in my lower back and legs when I run, so I won't be touching it again.