Mood Relaxation Sleep. The essential amino acid L-Tryptophan helps support relaxation restful sleep and feeling better. It plays a part in the synthesis of both melatonin and serotonin hormones involved with mood and stress response. L-Tryptophan also supports immune functions because it is the body's precursor to the kynurenines that regulate immunity. If needed L-Tryptophan converts to niacin in the body which supports circulation a healthy nervous system the metabolism of food and the production of hydrochloric acid for the digestive system. Source Naturals® L-Tryptophan is extremely pure and is regularly tested to ensure the highest standards of quality. Suitable for vegetarians and hypoallergenic.
"I have trouble sleeping. Used this product years ago until it was taken off the market by our government. It's back and better than ever. I use it every night, twenty minutes before I go to bed. I sleep the whole night through. I wouldn't be without it."
"After nearly 20 years of not being able to get L-tryptophan in this country I am delighted and surprised that it is available again. So far I am happy with this product and am sleeping better. I also take a B complex vitamin along with the L-tryptophan because many years my Dr. said it helps aid in the production of serotonin."