| Management number | 254561202 | Release Date | 2026/11/07 | List Price | US$9.60 | Model Number | 254561202 | ||
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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. Natural color variation may occur in this product.
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