Since the publication of a 1990 study showing potential reversal of aging in 12 elderly men, a huge market in HGH supplements has exploded almost overnight.

The chemical produced by the pituitary gland known as somatropin, or more popularly as human growth hormone (HGH), regulates the growth cycle of the human body during childhood and the teenage ye

Human growth hormone is a natural chemical produced by the pituitary gland in the human body that regulates height.

Human growth hormone, or HGH, is the chemical responsible for the growth of the human body primarily during adolescent years.

Creatine is an acid that is involved in processing energy in the skeletal muscles, and has become a popular supplement.

The bodybuilding supplement market is flooded with variations of creatine, and it's difficult to know which one to buy.

Creatine is involved in moving energy within the cells of skeletal muscles, the ones that most concern weight trainers and bodybuilders, and thus has become extremely popular as a supplement.

One of the most popular supplements in weight training and bodybuilding, after whey protein, is creatine.

In order for creatine to work, your muscles must be saturated with it.

The muscles that give your body shape and the ability to move are called the skeletal muscles, and in order to process energy they make use of an acid called creatine.