https://www.protocolforlife.com/l-tryptophan-1000-mg/
ITEM NUMBER: P0169 COUNT: 60 Tablets L-Tryptophan 1,000 mg -Encourages Positive Mood* -Supports Relaxation & Restful Sleep* How it Works: L-Tryptophan is an essential amino acid; therefore, it is not synthesized by the body and must be obtained from the diet. In the brain, Tryptophan is converted into serotonin, a neurotransmitter involved in feelings of well-being, calmness, personal...