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?

Living Green Liquid-Gel Multi for Women (90 softgels)* Irwin Naturals

Blood Builder (90 tabs)* MegaFood

PRID (18 g) Hylands

SoFresh Adult Flossing Toothbrush (Soft) OraMedix Inc.

Natural Collagen II Plus (90 capsules) Roex

Water Factors Maximized (90 Tablet) Country Life

Euphrasia officinalis 9C Boiron

PQQ Caps with BioPQQ (20mg 30 capsules)* Life Extension

Liver & Gallbladder Formula (100 caps) Christophers Original Formulas

Zyflamend Whole Body (120 Vegetarian Caps)* New Chapter Nutrition

Allure Loves Immuno-Viva Core
See what Immuno-viva Core can do for your skin. Naturally extracted from Black Cumin Seeds and Black Raspberry Seeds providing potent essential fatty acids.

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.

Vitamin D Standards Too Low
A worldwide increase to 2,000 IU of vitamin D daily (or higher for some groups) could reduce the incidence of a number of diseases, including multiple sclerosis, cancer, type-1 diabetes, metabolic syndrome, cardiovascular disease and tuberculosis.

Hunger Caps Appetite Control | Saffron Extract (60 capsules)* Re-Body

Vitamineral GREEN Capsules Version 5.3(400 v-caps)* HealthForce Nutritionals

IP6 Inositol Called a Natural Cancer Fighter
IP6 Inositol Hexaphosphate has been called a "natural cancer fighter" and scientific studies suggest that it slows or reverses the growth of various forms of cancer, including breast, colon, and prostate cancers.

Wobenzym | Systemic Enzymes | Wobenzym N
Wobenzym N is the authentic systemic enzyme formula developed by Mucos Pharma in Germany and trusted by millions of people worldwide for over 40 years. Free Shipping on all Wobenzym orders with delivery inside the United States.

Maca Tru (30 tabs) Enzymatic Therapy

Zyflamend | New Chapter Zyflamend Side Effects
Zyflamend Bonus Pack

Chandrika Soap Chandrika Soap

Ignatia amara 9C Boiron

Blood Builder (180 tabs)* MegaFood

Prostasol (80 caps)* Seacoast Natural Health

Best Noni Concentrate (650 mg - 150 capsules) Doctor's Best

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.

MicroLingualâ„¢ Technology by Superior Source Vitamins
Superior Source Vitamins is the #1 Alternative to Hard to Swallow Pills and Capsules