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 . 
Among the widely used steroids is Deca-Durabolin. For the past three decades, Deca Durabolin steroid has delivered great gains to people looking for muscle mass and has the ability to reduce joint pain and boost the body’s immune system. The most important benefit of Deca-Durabolin for both amateur athletes and bodybuilders is that it doesn’t have serious side effects since it doesn’t convert to estrogen like other compounds. As such, Deca-Durabolin does not have severe or higher degree side effects that other compounds might have.
A. This matrix stimulates healthy Nitric Oxide production through L-Norvaline, L-Arginine, and L-Citrulline, which dilates your blood vessels to deliver a large, sustained dose of anabolic branched-chain amino acids (BCAAs) directly to your muscles! This dosage of helpful BCAAs includes L-Leucine, L-Isoleucine, L-Valine, L-Carnitine, L-Taurine, L-Lysine, and L-Glycine, and will dramatically reinforce your body’s recovery processes and growth potential. L-Lecine is especially critical as it is only one of 3 amino acids that are digested right inside your muscles. The Anabolic Amino Acid Matrix also contains designer compounds that work to increase cell volume, nutrient uptake and maximize ATP production in muscle cells.