NOW Foods, L-Tryptophan Powder, 2 oz Immunity 5 is standardized to contain

5 is standardized to contain 2

Para-Gard® is a combination of berberine sulfate

and healthy metabolism

Supports detoxification pathways

NOW Foods, L-Tryptophan Powder, 2 oz Immunity 5 is standardized to containDescription Encourages Positive MoodPromotes 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