NOW Foods, L-Tryptophan Powder, 2 oz (57 g)
Now Foods · 56.7g · Item
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Product description
Supports RelaxationEncourages Positive MoodPromotes Restful SleepNon-GMOA Dietary SupplementVegetarian/VeganAmino AcidsFamily Owned Since 1968GMP Quality AssuredL-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.
Price history
Best price so far: £22.25 at Iherb on 22 Jul 2026