The essential amino acid L-tryptophan helps support relaxation, restful sleep, and positive mood. It plays a part in the synthesis of hormones involved with mood and stress response and sleep/wake cycles. L-Tryptophan also supports immune functions because it is the body's predecessor 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.
1 capsule three times daily, between meals and preferably with fruit juice. To support restful sleep, take 3 capsules before bed.
Iron (naturally occurring) - 575 mcg
L-Tryptophan - 1.5 g
Other Ingredients: gelatin (cap), dibasic calcium phosphate, microcrystalline cellulose, silica, and magnesium stearate.
About Source Naturals
Source Naturals was created in 1982 to support each individual's potential to enjoy optimal health. Source Naturals' comprehensive Bio-Aligned Formulas help bring the power of alignment to your body. When formulating, we evaluate the underlying causes of system imbalances, and then provide targeted nutrition to interdependent body systems. Our line of more than 600 products also includes well-researched, single entity nutrients in their highest quality and most bioavailable forms.
Do not use if pregnant or nursing. Keep out of reach of children. Please consult your health care provider if currently under care or treatment. Do not exceed recommended serving. See product packaging for additional safety information.
Individual results may vary. This product is not intended to diagnose, treat, cure or prevent any disease. The statements on this website and all affiliates have not been evaluated by the FDA. Advice on treatment or care of an individual patient should be obtained through consultation with a trained health care practitioner.
Return & Refund Policy
If the item you ordered arrived in a physically damaged or defective condition or is different from their description on the product detail page , or has missing parts or accessories, it will be eligible for a free replacement, provided the exact item is available with us.
Few items are eligible for free replacements. If an eligible item is out of stock from us it cannot be replaced. Only a refund against the returned item will be issued.
What are the conditions for Free Replacement?
Items within return window and in stock (exact same item) us are eligible for free replacement. The free replacement order will be shipped through standard shipping once the original order is returned. Free replacements can be requested if the following conditions apply:
- Item received is physically damaged;
- Item received has missing parts or accessories;
- Item received is different from their description on the product detail page on our website
- The Item received is defective.
- A free replacement cannot be created for an item that was returned and replaced once earlier.
- If the item has missing parts or accessories, you may try to contact the manufacturer for assistance. Manufacturer contact information can usually be found on the item packaging or in the paperwork included with the item.
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Data that we collect
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Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.