Product Description

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.


  • 5 stars: 4 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
C
Cameron

specific brand I originally wanted.

L
Lilnas

Great product . Encourages good mood.

A
Alora

It works to induce sleep for me.

J
Judy

I use this when I wake in the night and can't get back to sleep. It may take a bit of time to work, but I do go back to sleep and sleep till morning.