Working...
Source Naturals L-Tryptophan (120 Caps) is a supplement that provides the body with additional Tryptophan that promotes rest and relaxation.
Full price 43.50
Savings 40%

L-Tryptophan (120 Caps)

Buy 3 - Get free delivery on whole order

Source Naturals L-Tryptophan (120 Caps) is an essential amino acid supplement which is a precursor to both serotonin and melatonin.  While it is a precursor to both serotonin and melatonin which both are hormoes involved in stress and mood response, it also plays a part in their synthesis.  Tryptophan is also the precursor to kynurenines, which is used to regulate the body's immunity.  Meanwhile, tryptophan can also be used by the body to convert to niacin, which promotes a healthy nervous system, efficient metabolism and production of hydrochloric acid.  This Source Naturals L-Tryptophan is tested regularly to ensure safety, high standards and purity.

Suggested use: 1 capsule three times daily, between meals and preferably with fruit juice. To support restful sleep, take 3 capsules before bed.

Contains L-Tryptophan, Gelatin, Collodial Silicon Dioxide and Magnesium Stearate.  Take 3 capsules per serving.  Servings per container:. 40

Serving size: 500 mg in each capsule

  • Enables Relaxation
  • High Levels of Purity
  • Promoting Well Being
  • Increasing Serotonin Levels

By Arturo Carroll - Flag 
Comments? Question?
Updated May. 16, 2018, about 7 years ago

SKU: SN1985
UPC: 21078019855
Distributed or manufactured from Source Naturals. See more Source Naturals products.

*Not intended to diagnose or treat diseases or ailments, and is not reviewed by the FDA.

Uses & Indications.
  • Curbing Appetite
  • Increasing Serotonin Levels
  • Promoting Well Being
  • Promoting Relaxation
Ailments & Concerns.
  • Anxiety Attacks
  • Hyperactivity
  • Depression
  • Insomnia

Be the first to tell us your thoughts.Add your testimonial

Questions and answers:

Explore More Products

Super Red Pro-96 1lb
Super Red Pro-96 1lb Nature's Life


 18.98 
Nature's Life
Super Blue Pro-96 (1 lb.)
Super Blue Pro-96 (1 lb.) Nature's Life


 17.59 
Nature's Life

tryptophan serotonin precursor melatonin, hormoes kynurenines both collodial, relaxation regularly standards immunity
1. Statements and claims on Seacoast.com have not been evaluated by the FDA and are not intended to treat or diagnose any ailment or disease.

What interests you?

Lumina Health CellFood | Oxygen Therapy
Cellfood is the world's top-selling oxygen+nutrient formula sold in over 70 countries and recommended by health professionals everywhere. Celebrating 40 years of enhancing health throughout the world.

Blood Builder (90 tabs)* MegaFood

Borage Oil (60 soft gels) Barleans Organic Oils

Intestinal Movement Formula (120 Vcaps)* HealthForce Nutritionals

Green Phytofoods Powder (2 lb) NOW Foods

Steel Libido for Women (75 softgels)* Irwin Naturals

Fresh Green Black Walnut Wormwood Complex (2 oz) NOW Foods

5 HTP 50 mg (60 Caps)* Lidtke

Sambucus Black Elderberry Syrup (4oz) Nature's Way

Skin Restoring Phytoceramides with Lipowheat (30 veggie liquid caps)* Life Extension

PGX Daily | Benefits, Treatments & Side Effects
PGX is the new science of appetite control. The PGX program can be a comfortable way to improve eating habits for life.

Pectasol-C Modified Citrus Pectin | From Fruit Peel to Cancer Fighter
PectaSol-C Modified Citrus Pectin is the most effective product available for comprehensive, natural cellular health support. Dr. Isaac Eliaz, founder Econugenics.

Liver Detox (2-part kit)* Renew Life

Curamin (120 Caps) Terry Naturally

PRID (18 g) Hylands

Argentum nitricum 30X Boiron

ORAC-Energy Greens (60 day 364 g) Paradise Herbs

ProOmega Junior (90 Soft Gels)* Nordic Naturals

Mega Nutrient | Nature’s Way Alive Multivitamin
Alive Multi Vitamin from Nature's Way is the complete daily multivitamin containing the best ingredients from whole-food sources.

40,000 Volts (8 oz) Trace Mineral Research

Krill Oil (60 softgels) Jarrow Formulas

SoFresh Adult Flossing Toothbrush (Soft) OraMedix Inc.

Betaine HCI (120 Caps) NOW Foods

Wellness Formula (120 caps)* Source Naturals

Cantharis 9C Boiron

Mangosteen High Potency Xanthones (650 mg, 60 vcaps) Fruitrients X