Life Extension, 30 capsules/bottle. Serving size: 3
Tryptophan is a precursor for serotonin. Unlike other products that influence serotonin reuptake, L-tryptophan is a direct precursor that results in almost immediate increases in serotonin, which is one of the primary neurotransmitters involved with sleep and mood.
Ingredients (per 3 caps): Niacin 66mg; L-Tryptophan 1000mg; L-Lysine 250mg; Proprietary blend (Hops,Ginger, Rosemary) 285mg
