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Source Naturals

L-Tryptophan

Item | SN347

  • Helps support relaxation, restful sleep, and positive mood

  • Plays a part in the synthesis of both melatonin and serotonin

  • Supports immune functions
$27.99
Qty
Size
1.77 oz Pwdr
Shipping Box Ships within 2-4 business days

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Supplement Facts

Serving Size ¾ Teaspoon (approx. 1.5 g)

Servings Per Container 33

Amount Per Serving   % Daily Value
L-Tryptophan 1.5 g

†Daily Value not established.

Suggested Use: ¼ teaspoon three times daily, between meals and preferably with fruit juice. To support restful sleep, take ¾ teaspoon before bed.

CAUTION: If you are pregnant, may become pregnant, breastfeeding, or are taking medications such as SSRI’s or MAOI’s consult our healthcare professional before using this product. Keep out of the reach of children.

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

  • Helps support relaxation, restful sleep, and positive mood

  • Plays a part in the synthesis of both melatonin and serotonin

  • Supports immune functions

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 promote 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.

This formula is suitable for vegetarians and is hypoallergenic. It contains no yeast, dairy, egg, gluten, corn, soy, wheat, sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.

Terms and Ingredient Definitions

Shipping Weight: .17 lbs

Vegetarian
Gluten-Free

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

 
Disclaimer: Product reviews are provided for informational purposes only. The information or opinions expressed therein are solely those of the contributors and do not necessarily represent those of Swanson Health Products and its employees. Please read full product reviews disclaimer.
1-2 of 2 reviews
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Free of additives
I take different amino acids and, whenever I find one that is a pure powder, I use it instead of capsules. I take a lot of supplements and do not want to be ingesting all the additives. Be aware that, because this is only the powder (no sweetener added), it is rather bitter, so if you only like sweet tasting or good tasting supplements, you may want to add this to something that masks the taste. I feel tryptophan helps me sleep.
Quality: 5.0 / 5.0
Value: 5.0 / 5.0
Effectiveness: 4.0 / 5.0
Convenience: 5.0 / 5.0
Satisfaction: 5.0 / 5.0
Helpful?
Quality: 5.0 / 5.0
Value: 4.0 / 5.0
Effectiveness: 5.0 / 5.0
Convenience: 5.0 / 5.0
Satisfaction: 5.0 / 5.0
Helpful?

Swanson Health started in 1969 in Fargo, ND with a mission to offer pure and potent health products at a great value. Over 50 years later, we continue to innovate science-backed vitamins and supplements, delivering wellness solutions that help people live simply healthier together, and find vitality at any age. Click here to learn more about us.

For over 50 years, Swanson Health's research and development team has delivered science-backed health and wellness products to people around the world. Our innovation is guided by clinical research, scientific consensus, emerging research and usage traditions, creating products that help you find vitality at any age. At Swanson, we don't hide our science behind proprietary formulas — we believe in easy-to-read, transparent labelling. What's printed on our labels, is exactly what you'll find in our products.

Swanson Health's purity and potency testing begins with our ingredient sourcing, continues through manufacturing, and goes beyond when a product hits the shelf. Our testing exceeds industry standards, ensuring each product meets our quality guarantees for purity and potency. Swanson facilities are Good Manufacturing Practices (GMP) certified, and we voluntarily participate in third-party, independent laboratory testing. With Swanson, you can be sure you're getting the most pure and potent health products at a great value. Click here to learn more about our quality standards.

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