I'm a wee bit curious as to how something that creates a performing enhancing growth hormone can be legal if you aren't allowed to take one any other way. A bit like Bill 'I didn't inhale' Clinton.
"He always used it with the knowledge of WADA/ATP/ITF - you have to let them know you're using it under a therapeutic use exemption. Studies show it has no performance enhancing effect - the spike in human growth hormone (which is naturally generated) is shortlived and limited and is again part of the regenerative process for healing the injured area. This is a treatment for injury that lots of athletes with tendon problems have used. Not something banned or secretive. Lots of soccer players, basketball players (Kobe Bryant etc.), Tiger Woods - all have used it."