There are two ways to build muscle. The first way is to spend months and years in the gym using machines and free weights. This way has been used for nearly 3000 years and is still effective and is probably the healthiest way to build muscle mass. The other way is to use supplements. These are the only legal and healthy ways to build muscle mass. There are other ways, like steroids, but they are either illegal, unhealthy or both. Using the correct supplements however can have a steroid like effect if combined with the appropriate workout program.
Supplements do two things for you. The first is that they give you a great deal more energy so you can work out longer and harder and build faster. The second thing that supplements do is to protect you from using too much of certain resources like calcium and other vitamins.
There are different kinds of supplements however. For instance the most popular are protein supplements of which there two kind, pure and fortified. These are made of amino acids with are both safe and very effective for efficient muscle building. Pure protein is either whey or casein and is the best sources for amino acids in the body. There are also HMB supplements and glutamine supplements, which are both amino acids and help our muscles, recover from abuse much more quickly. HMB supplements are among the most popular because they are stronger and contain testosterone as well. Finally there is creatine, which is naturally produced in the body and gives you a great deal of extra energy for extending your workouts and building faster. If you are really into some heavy stuff however you might want to consider natural testosterone boosters which are the closest thing you can get to steroids and still be legal and safe.
Visit http://www.effectivehuman.com to get more information about the muscle building supplements available to you.