L-Tryptophan 60 vcaps

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L-Tryptophan 60 vcaps

L-Tryptophan from Douglas Labs supplies 1000mg of pure L-Tryptophan plus other synergistic cofactors in two vegetarian capsules. Tryptophan may be a useful dietary supplement for individuals wishing to support neurological function and healthy emotional wellbeing.

  • May support healthy mood and restful sleep*
  • May support womens emotional well being before menstruation*
  • May be helpful in supporting healthy relaxation and occasional food cravings*

Serotonin, an important brain neurotransmitter, is key in the regulation of appetite, mood, and melatonin production. The presence of serotonin in the brain is associated with a balanced emotional state. This is achieved in part by decreasing the activity of certain excitatory hormones, including dopamine and noradrenaline. Serotonin also acts as a satiety signal in the brain, thereby naturally regulating food intake.

Additionally, as a precursor of melatonin, serotonin is involved in regulating sleep patterns. Serotonin is unable to cross the blood-brain barrier and is therefore synthesized in the brain. Tryptophan, an essential amino acid, is a precursor for the synthesis of serotonin. Tryptophan crosses the blood-brain barrier and is converted to L-5-Hydroxytryptophan (5-HTP), which in turn is converted into serotonin.

Studies indicate that supplementation with L-tryptophan may support healthy mood and restful sleep.* Other studies indicate L-tryptophan may support womens emotional well being before menstruation.* Additional research indicates L-tryptophan may be helpful in supporting healthy relaxation and occasional food cravings.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Suggested Use

As a dietary supplement, adults take 2 capsules daily or as directed by your health care professional.

If you are taking medications for neurological conditions including Selective Serotonin Reuptake Inhibitors [SSRIs] or Monoamine Oxidase Inhibitors [MAOI], or are pregnant or nursing, do not use this product.

Keep out of the reach of children. Tamper resistant package, do not use if outer seal is missing.


Serving size: 1 capsule
Servings per container: 60

Ingredients Amount       %DV
Vitamin B6 (as pyridoxal-5-phosphate)       10 mg 500%
L-Tryptophan (as TryptoPure®) 1,000 mg

Other Ingredients: cellulose and silica.

† Daily Value not established

Contains NO: yeast, wheat, gluten, soy protein, milk, dairy, corn, sodium, sugar, starch, artificial coloring, preservatives or flavoring.