The most commonly used AAS in medicine are testosterone and its various esters (but most commonly testosterone undecanoate , testosterone enanthate , testosterone cypionate , and testosterone propionate ),  nandrolone esters (most commonly nandrolone decanoate and nandrolone phenylpropionate ), stanozolol , and metandienone (methandrostenolone).  Others also available and used commonly but to a lesser extent include methyltestosterone , oxandrolone , mesterolone , and oxymetholone , as well as drostanolone propionate , metenolone (methylandrostenolone), and fluoxymesterone .  Dihydrotestosterone (DHT; androstanolone, stanolone) and its esters are also notable, although they are not widely used in medicine.  Boldenone undecylenate and trenbolone acetate are used in veterinary medicine . 
Recent university research published in the prestigious journal Medicine and Science in Sports and Exercise, shows that combining the key ingredients found in Monster Mix with a proper diet and regular training programme will help you build muscle while SIMULTANEOUSLY shedding fat . Using a sophisticated technique for measuring body composition known as DEXA, results showed that the supplementation group added muscle more than three times faster than the control group. Subjects using the placebo put on almost 2 pounds of fat, while the supplementation group lost almost three pounds of fat.