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L-Tryptophan 500mg, 90 Capsules - Doctor's Best


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Doctor’s Best L-Tryptophan with TryptoPure is manufactured and tested for purity according to the Japanese Pharmacopeia (JP) and the United States Pharmacopeia (USP) standards.

L-Tryptophan is an essential amino acid (protein building block) in human nutrition


Allergen Information

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(other) Modified cellulose (vegetarian capsule), magnesium stearate (vegetable source) microcrystalline cellulose, silicon dioxide.


Take 1 capsule daily, or as recommended. For optimum absorption, take separately from protein-containing foods and dietary supplements containing protein or amino acids.

Storage Instructions

Store in a cool, dark place out of reach of children


Food supplements should not be used as a substitute for a varied diet. If you are taking prescribed medication, have any medical condition or are pregnant or breast-feeding please consult your healthcare practitioner before taking food supplements.

Supplement Facts
Serving Size: 1 veggie capsule
Servings Per Container: 90 servings
Amount Per Serving%Daily Value
L-Tryptophan (from TryptoPure)500 mg
†Daily Value not established.