L-Tryptophan, 1000mg Double Strength - 60 tablets. L-Tryptophan, 1000mg Double Strength - 60 tabs. NOW L-Tryptophan - Essential Amino Acid for Mood & Sleep Support. Each batch of NOW L-Tryptophan is carefullytested for purity and quality - free from peak E and microbial contamination for your safety and peace of mind.
