The amino acid 5-HTP, short for 5-hydroxytryptophan, is the hydroxylated form of the amino acid tryptophan, which is found in high-protein foods such as meat and dairy products. 5-HTP functions as an intermediate metabolite between the amino acid L-Tryptophan and the neurotransmitter Serotonin. Tryptophan is converted to 5-HTP, which in turn is converted to serotonin. Serotonin plays an important role in many bodily functions such as appetite control, mood stability and sleep. Solgar's 5-HTP is a dietary supplement essential for the proper functioning of the brain, nervous system and appetite. Solgar's 5-HTP contains natural 5-HTP derived from a standardized extract of the African bean Griffonia simplicifolia. Due to its effects on serotonin levels, Solgar's 5-HTP is considered useful in disorders such as depression, insomnia, fibromyalgia, headaches, as well as in cases of bulimic obesity. Studies have revealed that serotonin is responsible for feelings of well-being, calmness, relaxation, confidence and concentration. It has also been found to help increase levels of β-endorphin, an endorphin associated with strong analgesic effects. In addition to 5-HTP, it contains valerian, magnesium and vitamin B6.