A creatine supplement is described which contains a combination of creatine and propylene glycol. The supplement preferably contains from about 25-50% creatine and from about 50-75% propylene glycol. The propylene glycol not only makes the supplement more bioavailable than conventional creatine ...http://www.google.de/patents/US5773473?utm_source=gb-gplus-sharePatent US5773473 - Creatine supplement