5-HTP (5-hydroxytryptophan) is an amino acid that serves as a direct precursor to serotonin, a neurotransmitter linked to mood and sleep. Unlike serotonin, which is unable to cross the blood-brain barrier, oral 5-HTP can readily enter the brain and serve as a precursor for serotonin synthesis in the central nervous system. SmartMatrix™ sustained-release tablets overcome this challenge by providing a slow, steady release of 5-HTP over several hours. This reduces the need for frequent dosing and helps keep plasma levels steady, avoiding the sharp peaks and drops that can cause digestive upset and other side effects
