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 3 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?

Stevia plus FOS (4 oz)* Planetary Herbals

Steel Libido for Women (75 softgels)* Irwin Naturals

ORAC-Energy Protein & Greens (16 oz) Paradise Herbs

Angioprim | Liquid Oral EDTA Chelation Angioprim International

Zyflamend | New Chapter Zyflamend Side Effects
Zyflamend Bonus Pack

Elderberry-Syrup | Effective Cold and Flu Remedy
Elderberry-Syrup Encourages Healthy Upper Respiratory and Enhances Overall Immune Functions.

System-Six, Powerful Weight Loss Support (100 softgels) Irwin Naturals

Ultimate Acai Diet & Cleanse (90 Vcaps)* Rainforest

Biotivia | Transmax |Potent Resveratrol Supplements
Biotivia Transmax rated best resveratrol supplement by Men's Health Magazine. On Sale. Lowest Price. Too Low to be advertised. orders@seacoastvitamins.com contact us today!

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.

Cobra Male Energy (120 Cap Economy Size) Natural Balance

Blood Builder (90 tabs)* MegaFood

Inositol Powder (8 oz) Country Life

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

Resveratrol (250 mg-60 capsules)* ReserveAge Organics

Releev One Day Cold Sore Treatment (0.2 oz) ViraMedX

Vitamineral Green Superfood (500 g)* HealthForce Nutritionals

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

Sambucol Cold & Flu Fighter
Sambucol. World renowned original formula, clinically tested, virologist developed. Boost immunity. Unique black elderberry extract rich in immune supporting flavonoids. Cold & Flu Season Special.

Pepogest (60 caps) Nature's Way

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

Sinu Orega Nasal and Sinus Spray North American Herb and Spice

Leg Veins (120 Vcaps)* Nature's Way

ProEFA Liquid (8 fl.oz)* Nordic Naturals

Green Vibrance Green Foods Bulk Economy Size (1 kilo 35.27 oz)* Vibrant Health

Borage Oil (60 soft gels) Barleans Organic Oils