"Jim is the best trainer I have ever worked with. Amazing results and
no B.S." — Kevin Bacon

"The most efficient and best workout ever. Jim is a true genius and the nicest guy you'll ever meet!" — Kyra Sedgwick

"Now in my fourth year of XNTRX (and eighth decade of life) with Jim Clarry, I eagerly look forward to the weekly sessions that have strengthened my body as no other training regime has ever done for me successfully or consistently." — Ben Rosen, Former Chairman, Compaq Computer Corp.

"I have the great gift and pleasure of training with Jim Clarry for the past six years. While 'gift and pleasure' is a characterization not often associated with high intensity workouts--they apply precisely to working with Jim. His extraordinary qualities--a deep far reaching intelligence about all areas that relate to the body, and his remarkable ability to push you forward without tension or pressure in each session with him, but to stay the course of working out at an increasingly high level of intensity for many years. Now, thanks to Jim, I happily find myself in the best physical shape of my life." — Martha Parker

"Real science and innovative technology make XNTRX the ideal place for busy people who hate spending time in a crowded gym to train. After just seven months of one to two half-hour sessions per week, my energy level has increased substantially and my strength and overall health have improved dramatically. I have lost multiple inches off my waist and gained over ten pounds of lean mass. Jim’s and Jay’s passion and sense of humor even make the high intensity sessions enjoyable!" — John Dickey

"I didn't believe that once a week could change my body this drastically.
I feel amazing!" — Sally Wears

"Two years later, I can honestly say this -- I have saved a tremendous amount of time and money. What do I have to show for it? An incredibly, strong, fit body." — Leor Herzfeld