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Feature

NATURAL SLEEP AID - L-Tryptophan is an essential amino acid and precursor to Melatonin and 5-HTP, both of which work to help improve sleep.
INCREASE SEROTONIN - L-Tryptophan is used by the body to produce serotonin, a neurotransmitter. Low serotonin levels can contribute to carbohydrate cravings and poor sleep.
IMMUNE FUNCTION - Tryptophan is used by the body to produce kynurenines, which play various roles in regards to immune function.
SUPERIOR QUALITY - NutraBio uses only the best, and this product is no exception. Our Tryptophan is non-GMO, gluten free, soy free, vegetarian, third-party tested, certified kosher, and made in the USA.
THIRD PARTY TESTED, FULL DISCLOSURE - Like all NutraBio products, our Tryptophan is tested by an independent third party lab to ensure it is both pure and meets our strict quality standards. All NutraBio products feature fully transparent labels with no proprietary blends.

Description

L-Tryptophan is an essential amino acid important for the synthesis of melatonin and serotonin which are hormones that regulate mood and stress response. L-Tryptophan helps support relaxation, sleep, positive mood and immune function. L-Tryptophan is the precursor to Serotonin, a neurotransmitter in the brain, which is deficient in people who have depression. 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. As an essential amino acid, it is not synthesized by the body and must be obtained from the diet.