5-Hydroxy-L-Tryptophan is the intermediate metabolite between the amino acid tryptophan (L-Tryptophan) and the neurotransmitter serotonin (Seroton). High levels of serotonin in the body improve sleep and boost mood. Therefore, it is mainly used to regulate the circadian rhythm of the body and to treat anxiety and depression.

5-HTP promotes deep and restful sleep. Sleep is a very important factor in the body's recovery process after intense exercise. Supplementing with 5-HTP helps increase serotonin levels, and enables athletes to relax and reduce stress during intense training. The action of 5-HTP reduces the time it takes the body to fall asleep and increases the stages of REM sleep, so that deeper sleep occurs. This allows the body to recover and increase energy levels.

Note: NOW's 5-HTP is derived from Griffonia simplicifolia seed extract, and is of high purity.