NOW - L-Tryptophan 220 mg | 60 Capsules

NOW L-Tryptophan is an essential amino acid that plays a critical role in the production of serotonin and melatonin. These neurotransmitters help support mood regulation, healthy sleep patterns, and immune system function. Since L-Tryptophan cannot be synthesized by the body, it must be obtained through diet or supplementation. NOW ensures the highest quality of L-Tryptophan, tested for purity and potency.