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Item #: 0169
Reg. Price: $37.99
Our Price: $21.99

Description  more details

L-Tryptophan 1000 mg - 60 Tablets


  • Supports Relaxation
  • 1000 mg
  • Fast-Acting Disintegration
  • Encourages Positive Mood
  • Promotes Restful Sleep
  • Pharmaceutical Grade (USP)
  • Vegetarian Formula


L-Tryptophan is an essential amino acid important in human nutrition for the synthesis of melatonin and serotonin, hormones regulating mood and stress response.  L-Tryptophan helps support relaxation, sleep, positive mood and immune function.  As an essential amino acid, it is not synthesized by the body and must be obtained from the diet.

NOW L-Tryptophan is pharmaceutically pure, every lot is tested to be free of Peak E and microbial contamination. L-tryptophan is critical for the body to produce serotonin, which helps maintain a calm and relaxed mood. Many medications used to treat depression are aimed at increasing the amount of serotonin in the brain.

L-Tryptophan can help you sleep. Studies dating back to the late 1970s have demonstrated that taking between 1 and 15 grams of tryptophan at bedtime can help you fall sleep. Those who take tryptophan at bedtime are more likely to wake up with increased alertness, to have clearer thinking, and to perform better on attention-requiring tasks. Unlike sleeping pill drugs, tryptophan induces sleepiness but does not impair performance or produce dependence, nor does it make it harder to be roused from sleep when necessary.

 L-Tryptophan helps mood and stress.

  • Grumpiness, irritability, stress, and anxiety are common in aging adults.

  • Sleep disorders, depression, post-traumatic stress disorder, and suicidal thinking have all been traced to depletion of brain levels of the neuro-transmitter serotonin, which is responsible for maintaining an up mood.

  • Although you can’t supplement with serotonin itself, its precursor, the amino acid tryptophan, is readily available as a safe, well-proven supplement.

  • Supplementation with tryptophan reduces irritability in older adults, in women with premenstrual syndrome, and in people with depression and anxiety.

  • Anxiety and stress responses can have a major impact on social functioning. Extreme situations such as post-traumatic stress disorder can be especially debilitating. The natural protective response to stress and anxiety involve the serotonin signaling system, as well as hormone pathways in the brain, pituitary, and adrenal glands.

  • The connection between tryptophan and serotonin explains why tryptophan supplementation has been found to help reduce anxiety and alleviate stress. Tryptophan supplementation reduces biochemical markers of stress, particularly the hormone cortisol that has many deleterious effects in the human body.

Nutrition Info
Serving Size: 1 Tablet -Servings Per Container: 60
 Amount Per Serving  
L-Tryptophan (Free-Form)   1.0 g (1,000 mg)   



Suggested Usage:  As a dietary supplement, take 1 tablet 1 to 3 times daily on an empty stomach or as directed by a healthcare professional.  Best used at bedtime.  Consider taking this product in combination with NOW Inositol and Magnesium.

 Other Ingredients:  Cellulose, Stearic Acid (vegetable source), Croscarmellose Sodium, Magnesium Stearate (vegetable source), Silica and Vegetable Coating.

Contains no:  sugar, salt, yeast, wheat, gluten, soy, milk, egg, shellfish or preservatives.  Vegetarian/Vegan Product.

NOW L-Tryptophan is Pharmaceutical Grade (USP).

Warning:  Keep out of reach of children.  Pregnant/lactating women, those taking anti-depressant medications (such as SSRI's or MAOI's), or those with liver disorders, consult a health care professional before using this product.  May cause drowsiness.

Disclaimers:  *These statements have not been evaluated by the FDA.  This product is not intended to diagnose, treat, cure or prevent any disease.




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