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L-Tryptophan
  
Pharmaceutical grade ultra-pure for maximum bioavailability.
Pure amino acid with no fillers or additives.  HPLC verified.
Powder - 100 Grams
Item #23550  (200 Servings)  Retail: $49.99
your price: $22.99

save 54%

 

Minimum 34 month expiration.

Powder - 500 Grams
Item #23551  (1000 Servings)  Retail: $149.99
your price: $89.99

save 60%

 

Powder - 1000 Grams
Item #23552  (2000 Servings)  Retail: $299.99
your price: $139.93

save 69%

 

Powder - 2268 Grams
Item #23553  (4536 Servings)
your price: $259.87

save 75%

 

150 Capsules - 500 mg
Item #23556    Retail: $59.99
your price: $29.99

save 64%

 

500 Capsules - 500 mg
Item #23557    Retail: $199.99
your price: $79.96

save 70%

 

1000 Capsules - 500 mg
Item #23558 
your price: 129.99

save 76%

 

Powder is OU certified kosher pareve. The capsules are not kosher.   Click to view certification

L-Tryptophan is an essential amino acid important for the synthesis of melatonin and serotonin which are hormones that regulate mood and stress response. L-tryptophan helps support relaxation, sleep, positive mood and immune function. As an essential amino acid, it is not synthesized by the body and must be obtained from the diet. Tryptophan is the precursor to Serotonin, a neurotransmitter in the brain, which is deficient in depression, and naturally enhances sleep.

  • Supports Relaxation

  • Encourages Positive Mood

  • Promotes Restful Sleep 

L-Tryptophan also supports immune functions because it is the body's precursor 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.

During dieting, L-Tryptophan levels and serotonin levels drop dramatically. These low serotonin levels in overweight and obese patients are known to cause carbohydrate cravings and the resultant binge eating. Because brain and blood levels of serotonin, rise and fall depending on the amount of L-Tryptophan you consume, many health practitioners use L-Tryptophan to stop the cravings and help diets succeed. Numerous clinical trials on overweight patients have demonstrated food cravings decrease, and food intake decreases when serotonin levels are high.

We guarantee our supplements to be the freshest and purest: Our powders and capsules contain only pure active ingredient with absolutely no additives. Other manufacturers, in an effort to keep costs down, dilute their products with cheap fillers and add chemical excipients to their products to speed up their manufacturing output. These practices cheat you out of the active ingredient. At NutraBio, we've perfected our manufacturing technology so that excipients aren't needed, that means no microcrystalline cellulose, magnesium stearate, silica or other fillers, just 100% pure active ingredient. NutraBio supplements are manufactured under the strictest standards producing the highest quality and purest supplements available anywhere. Our raw ingredients undergo state of the art HPLC analysis to insure zero tolerance for impurities and we manufacture our products every 2 weeks which guarantees you a minimum of 34 months before expiration.

Expiration 34 months minimum
Grade pharmaceutical
Purity 99.88%+ purity (HPLC)
Taste n/a
Solubility n/a
Characteristics kosher, vegetarian
Appearance n/a
Odor n/a
pH 5.5~7.0
Classification free form amino acid
Origination glucose fermentation (vegan)
CAS Registry 73-22-3
Synonyms L-alpha-aminoindole-3-propionic acid, (s)-2-amino-3-(1h-indol-3-yl) propanoic acid, indole-3-alanine
Molecular Formula C11H12N2O2
Molecular structure

L-Tryptophan Molecule

Suggested Usage: As a dietary supplement take 1-2 level scoop (500-1000 mg) of powder or 2 capsules with water or your favorite beverage on an empty stomach,  1-2 times daily or as directed by your physician. For maximum benefit, take up to 3 grams (3000mg) per day. As a sleep aid, Take 1 - 3 capsules 30 minutes before bedtime, during the night if required, or as needed.  When using powder mix for 15 to 20 seconds using a shaker cup or mix thoroughly with a spoon. May not mix very easily. May be hygroscopic and may clump during storage. This does not effect the efficacy of the product, but just the texture.

Hypoallergenic: Contains no yeast, dairy, egg, gluten, corn, soy, wheat, sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.

Warning: Keep out of reach of children. If you are pregnant or breast feeding, consult your health care professional before using this product. People with known medical conditions and/or taking drugs should consult with a licensed physician and/or pharmacist prior to taking any dietary supplements. CAUTION!: If you are currently taking, or within the last 90 days have taken, any anti-stress, anti-anxiety, or anti-depression medications DO NOT TAKE L-Tryptophan without first talking to your prescribing physician.

We guarantee our supplements to be the freshest and purest available:  This supplement contains absolutely NO additives, sweeteners or other fillers or agents that many manufacturers dilute their products with. NutraBio.com supplements are manufactured under the strictest standards producing the highest quality and purest supplements available anywhere. Our raw ingredients undergo state of the art HPLC analysis to insure zero tolerance for impurities and by-products. When it comes to price and quality you can't beat NutraBio.com. We guarantee it!

Purchase your supplements manufacturer direct at below wholesale price: Buy directly from the manufacturer and save. We cut out the middlemen and pass the savings on to you. With NutraBio.com you can buy your supplements at the same low wholesale price that the chain stores get. We've been around since 1996 and our only business has been the manufacture and supply of the highest quality nutritional supplements. We are a professional nutriceutical, FDA inspected facility which adheres to all FDA, FTC and NNFA labeling and manufacturing guidelines.

Important facts you should know about our supplements:

  • HPLC laboratory tested for purity.
  • Freshly manufactured - not expired or closeout.
  • Spoon mixes with no gritty taste or residue.
  • Backed by the NutraBio.com 30-day money back guarantee.
  • Free of animal products.

Certificate of Analysis Proves Quality & Freshness:  Always know the expiration date of a supplement before you purchase. If the manufacturer won't give you the expiration date and a Certificate of Analysis than beware. Many online venders sell expired or nearly expired products which they get on closeout from distributors who can no longer sell them to stores. NutraBio.com guarantees that this product is from the freshest and purest raw ingredients available and was packaged within the last two weeks. Click on the red "Purity & Freshness Seal" at the top of the page to view the actual Certificate of analysis.

FREE dosing scoop with your order: Get the exact dosage every time with a free single-dose scoop. This scoop was designed by our lab to give you exactly one serving each time. No more measuring or guessing.

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*The products and claims made about specific products on this page or through this site have not been evaluated by the United States Food and Drug Administration and are not intended to diagnose, treat, cure or prevent disease. The information provided on this site is for informational purposes only and is not intended as a substitute for advice from your physician or other health care professional or any information contained on or in any product label or packaging. You should not use the information on this site for diagnosis or treatment of any health problem or for prescription of any medication or other treatment. You should consult with a healthcare professional before starting any diet, exercise or supplementation program, before taking any medication, or if you have or suspect you might have a health problem. Please view our full Terms Of Use for more information and the terms and conditions governing your use of this site.


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