L-Tryptophan 500 mg

SKU: P-120-SN1980 Categories: , , ,


Only 2 left in stock


Only 2 left in stock


Mood, Relaxation, Sleep

The essential amino acid L-tryptophan helps support relaxation, restful sleep, and positive mood. It plays a part in the synthesis of both melatonin and serotonin, hormones involved with mood and stress response and sleep/wake cycles. 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.


  • If you are pregnant, may become pregnant, breastfeeding, or are taking medications such as SSRIs or MAOIs, consult your health care professional before using this product.
  • Do not use if either tamper-evident seal is broken or missing.
  • Keep out of the reach of children.
  • Store in a cool, dry place.


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Suggested Use:

1 tablet three times daily, between meals and preferably with fruit juice. To
support restful sleep, take 3 tablets before bed.
Supplement Facts:

Serving Size: 3 Tablets
Per Serving %DV
Calcium 52 mg 5%
Iron (naturally occurring) 570 mcg 3%
L-Tryptophan 1.5 g
†Daily Value not established.

Other Ingredients: Dibasic calcium
phosphate, stearic acid, modified cellulose gum, and colloidal silicon dioxide.


  • Suitable for vegetarians and Hypoallergenic: 
  • Contains no yeast, dairy, egg, gluten, corn, soy or
  • Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.