EN
USD

Customize Your Shopping Experience!

Please select the destination country, language, and currency you prefer.

1
3
Your Cart is Empty
But it doesn't have to be.
Continue Shopping.

Now Foods, L-Tryptophan, 500 mg, 120 Veggie Caps
(Save Image)

Now Foods, L-Tryptophan, 500 mg, 120 Veggie Caps
(Save Image)

Now Foods, L-Tryptophan, 500 mg, 120 Veggie Caps

By Now Foods

105 Reviews
In Stock
  • Product Code: NOW-00167
  • UPC Code: 733739001672
  • Package Quantity: 120 Veggie Caps
  • Dimensions: 4.6 x 2.7 x 2.7 in, 0.3 lbs (0.14 kg)
MSRP:
$39.99
Our Price:
$25.49
You Save:
$14.50 (36%)
  • Volume Discount
  • Buy 2+

    Save 10%

  • Buy 4+

    Save 12%

  • Buy 12+

    Save 15%

This product is already in your Notification List.


Cancel notification request.

This product is now in your Notification List.

This product is already in your Wish List.


View Wish List

This product is now in your Wish List.

Bundle Offer
Save $2.00 when you purchase these items today for only $28.44

Total: $30.44

Combo Discount: -$2.00

Together: $28.44

Product Overview

Description
  • Supports Relaxation
  • Premium Grade
  • Encourages Positive Mood
  • Promotes Restful Sleep
  • GMP Quality Assured
  • A Dietary Supplement
  • Vegetarian/Vegan

L-Tryptophan is an essential amino acid; therefore, it is not synthesized by the body and must be obtained from the diet. L-Tryptophan is critical for the production of serotonin and melatonin, which help to support a positive mood, healthy sleep patterns, and proper immune system function. Every lot of NOW L-Tryptophan is tested to be free of Peak E and microbial contamination.

Suggested Use

As a dietary supplement, take 1-2 capsules 2 to 3 times daily on an empty stomach, with final dose at bedtime, or as directed by your physician. Consider taking these other NOW products: Inositol and Magnesium.

Other Ingredients

Cellulose (capsule), cellulose powder and stearic acid (vegetable source).

Not manufactured with wheat, gluten soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Warnings

Store in a cool, dry place after opening after opening.

For adults only. Consult physician if pregnant/nursing, taking medication (especially antidepressants such as SSRIs and MAOIs), or have a medical condition. May cause drowsiness. Do not use with alcoholic beverage or while operating heavy machinery. Keep out of reach of children.

Do not eat freshness packet. Keep in bottle.

Visit Manufacturer's Website
Supplement Facts
Serving Size: 2 Veg Capsules
Servings Per Container: 60
  Amount Per Serving % Daily Value
L-Tryptophan (Free-Form) 1.0 g (1,000 mg) *
* Daily Value not established.

iHerb Customer Reviews

5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Good for sleep and or mood support
Tryptophan is a precursor (building block) to 5-HTP which in turn is a precursor to the neurotransmitter serotonin. Serotonin is needed to make the sleep hormone melatonin. It helps to understand this relationship when you use these products. Some people use this for mood support and others use it to help with sleep. Tryptophan is found in turkey and chicken and can make you sleepy when you eat a lot of it. 5-HTP is a less costly product but it does not work for everyone. Try 5 HTP before using tryptophan and if it is not effective then give Tryptophan a try. Typical doses for Tryptophan are .5 to 2 grams. This is an amino acid and you will get the best results when taken on an empty stomach. Some people find that taking some vitamin B6 and or B3 with this can help it work better as they is a cofactors in the synthesis of serotonin and melatonin. If you take any mediation for depression you want to clear this with your health care provider first I have used NOW products for years and believe they have good quality products and they hold to GMP standards. They are made in the USA and they keep their pricing reasonable. I will add that some people believe Tryptophan is dangerous because it was taken off the market years ago for causing serious problems and even death. That was due to a contaminated batch of tryptophan that came from a Japanese manufacturer. It was the contamination that hurt people, NOT the tryptophan. Always make sure you buy it from a reputable manufacturer. If you found this review helpful, kindly visit my iHerb home page by clicking on my handle name above and read my other value added reviews. "Yes" helpful votes are appreciated. Peace and good health.
Sep 09, 2013
great for sleep,mild depression
due to various issues, I've spent decades searching for the perfect sleep. I've tried nearly everything. Most nutrients did very little, most medications left me feeling like a drugged-out zombie. That's not how I want to live, so I kept searching, until I stumbled onto this (in an Iherb review, no less): each evening at bedtime I take one teaspoon of glycine powder, a half-teaspoon of taurine powder, and a quarter teaspoon of Gaba powder. I stir these into lukewarm water. They mix easily and completely, and the taste is mildly sweet. I take tryptophan and magnesium capsules at the same time. Within minutes a gentle sleep blanket comes over me. I then sleep 7-8 uninterrupted hours, and wake up refreshed and feeling great. My wife, who has always been a very light sleeper, and would be awakened byu the slightest noise, reports that she sleeps more deeply and wakes up much less often. This combination really works! I believe that nutritional supplements saved my life. I've tried a lot of products, and I know what works and what doesn't. My reviews are honest, straighforward, and based on my experience. Read my other reviews to quickly learn from my three decades of research and experimentation.
May 23, 2013
 

The Most Recent iHerb Customer Reviews

See All Reviews