Human Growth Hormone (HGH) replacement therapy is a new concept that is getting a lot of attention from consumers and from the medical community. Some medical experts believe that HGH has the ability to combat certain effects of aging, such as an increase in body fat, the loss of lean muscle tissue, sleeping problems, and decreased mental function. Many people are excited about HGH replacement therapy in the hopes that such treatments will help them feel younger as they age. HGH replacement therapy is available in a variety of forms. Two popular forms are HGH sprays and HGH supplements.

HGH sprays are orally-administered tinctures that contain any number of a combination of vitamins and amino acids designed to increase the body's natural production of Human Growth Hormone. HGH is produced by the pituitary gland, a small structure at the base of the brain. HGH acts on the liver to stimulate the production of insulin-like growth factor I (IGF-I), which is carried in the bloodstream to cells and tissues that use it to maintain the health of old cells and create new ones.

Most HGH sprays tout their ease of use as a major selling point, advising two or three sprays beneath the tongue once or twice a day. Many users of HGH sprays report an immediate sense of well-being following their treatments and many see improvements in their energy, strength, alertness, and physical health after about three weeks.

HGH supplements act in many of the same ways as HGH sprays. HGH supplements come in a capsule, effervescent tablet, or powder form and are usually administered once or twice a day. Like HGH sprays, HGH supplements are formulated to increase the body's natural production of HGH, often resulting in a reduction in body fat and an increase in lean muscle mass as well as other benefits, such as increased alertness, more restful sleep, and increased sex drive and sexual function.