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Source Naturals L-Tryptophan 500 mg capsules- 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 or wake cycles.
- L tryptophan also supports immune functions because it is the bodys 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.
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Supplement Facts:

Other Ingredients:Gelatin (capsule), microcrystalline cellulose, dibasic calcium phosphate, colloidal silicon dioxide, and magnesium stearate.
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If you are pregnant, breastfeeding, may become pregnant, or are taking medications such as SSRIs or MAOIs consult your health care professional before using this product.