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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.*
| Amount Per Serving | % Daily Value |
| Iron (naturally occurring) | 575 mcg | 3% |
| L-Tryptophan | 1.5 g | † |
| 3 Capsules Contains: | ||
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| and more | ||
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Servings: 20
Serving Price:
$0.45
Price Per Capsule:
$0.15
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SSL Certificates |
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Order 800-338-7979 | Customer Service 800-754-8000
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