- Premium Grade
- Encourages Positive Mood
- Promotes Restful Sleep*
L-Tryptophan is an essential amino acid; therefore, it is not synthesized by the body and must be obtained from the diet. L-Tryptophan is critical for the production of serotonin and melatonin, which help to support a positive mood, healthy sleep patterns, and proper immune system function.* Every lot of NOW?? L-Tryptophan is tested to be free of Peak E and microbial contamination.
This product is sold by weight not volume.
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