5-htp (5-Hydroxytryptophan) is an amino acid that is a direct precursor to serotonin, a key neurotransmitter that regulates mood, sleep, and appetite. Solgar's 5-htp is derived from the seeds of the African plant Griffonia simplicifolia. This vegetarian formula provides support for emotional well-being and promotes relax, as well as contributing to healthy serotonin levels in the body. Solgar's 5-htp is designed to support mood and provides a holistic approach to mood health, helping to foster a positive outlook, increased calmness, and better sleep support. Each capsule is carefully crafted to ensure optimal absorption and bioavailability.