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NOW Foods

Double Strength L-Tryptophan

Double Strength L-Tryptophan

Item: NWF253

  • Promotes relaxation and restful sleep

  • Encourages positive mood

  • Vegetarian/vegan formula

1,000 mg 60 Tabs

Retail $37.99
Save 39%
In Stock
  • Promotes relaxation and restful sleep

  • Encourages positive mood

  • Vegetarian/vegan formula

L-Tryptophan helps support relaxation, sleep, positive mood and immune function. L-Tryptophan is important in human nutrition for the synthesis of melatonin and serotonin. As an essential amino acid, it is not synthesized by the body and must be obtained from the diet. NOW Double Strength L-Tryptophan is pharmaceutically pure - every lot is tested to be free of Peak E and microbial contamination. Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients.

Terms and Ingredient Definitions

Supplement Facts

Serving Size 1 Tablet

  Amount Per Serving % Daily Value
L-Tryptophan (Free-Form) 1 g (1,000 mg) *

* Daily Value not established.

Other ingredients: Cellulose, Stearic Acid (vegetable source), Croscarmellose Sodium, Magnesium Stearate (vegetable source), Silica and Vegetarian Coating.

Suggested Usage: Take 1 tablet 1 to 3 times daily on an empty stomach, with final dose at bedtime, or as directed by your physician.

Caution: 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 beverages or while operating heavy machinery. Keep out of reach of children.

Do Not Eat Freshness Packet. Keep in Bottle.

Natural color variation may occur in this product.

Store in a cool, dry place after opening.

  • 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.
  • Non-GMO
  • Vegetarian/Vegan
  • Recyclable Bottle.

Shipping Weight

.26 lbs

NOW Foods Double Strength L-Tryptophan Reviews

Summary of Customer Ratings & Reviews

Customer Ratings & Reviews

Rated 4.6 out of 5 by 24 reviewers.
Rated 5 out of 5 by Sleeping better already Sleeping better already. My naturopathic physician, perhaps unlike others, is highly selective about her nutritional supplement recommendations. She was definitely right on this one ! February 10, 2016
Rated 5 out of 5 by very useful helps me in combination with other like products December 18, 2015
Rated 5 out of 5 by L-Tryptophan 1000 mg NOW Foods Have used this product for better than 2 years. It is very effective for me and I recommend it for its helpfulness in restful sleep. April 29, 2014
Rated 4 out of 5 by bedtime relaxer Really helps me fall asleep, along with melatonin, but a little large to swallow for my small throat! October 6, 2013
Rated 5 out of 5 by zzzzzzzzzzzzzzz I have been taking this product for a long time. They help me to sleep without any unwanted side effects. July 4, 2013
Rated 5 out of 5 by Works well The wife takes this product on a regular basis and seems very pleased with the results. When she gets down to a dozen or so caplets she always reminds me that it is time to re-order. Overall, I am very pleased that this product has been made available by Swanson's. A name that I have come to completely trust for a quality product at a fair price. March 25, 2013
Rated 5 out of 5 by Great product. One of these at bedtime helps keep my mood elevated and also helps me sleep. I used to take the 500mg tablet, twice a day, but it is easier, for me, to just take this at bedtime. March 10, 2013
Rated 1 out of 5 by Didn't Like For some reason Now's 1,000 tablet form did not work for me. I normally use Now's 500mg CAPSULES and these work great for me (as expected). It was horrible not having the effective Tryptophan in my system that I'm used to. Since many people like this product it's obvious different formulas work differently for each person. If you're new to Tyrptophan be sure to find what works for you. I've used Tyrptophan for over 5 years, and with both Swanon's and Now 500mg CAPSULES I get great results, and those effects where felt in just three days. This product fell completely flat for me even the next day. February 5, 2013
Rated 5 out of 5 by I Sleep Better I take 2 of these every night before bed. I had started not being able to sleep well and when I would wake up in the middle of the night I could fall back to sleep. Now I fall back to sleep easily. I make sure I am never without these! February 3, 2013
Rated 5 out of 5 by My mind and body go 'aahhhh' when I use this. I've found this to be very effective. February 1, 2013
Rated 5 out of 5 by L-Tryptophan 1000 mg by NOW Waking up in the middle of the night---or even upon waking up near morning---I nearly always can quickly return to sleep with just one 1000 mg. tablet and have used the NOW brand for years. November 1, 2012
Rated 1 out of 5 by Swanson brand L-Tryptophan I substituted this brand of L-tryptophan because you were temporarily out the "Swanson" brand that I have been purchasing over 2 years. This brand had no effect on me and now I am stuck with it. What a waste of money. i hope you have the Swanson brand that I am used to real soon. Jean Stachon October 22, 2012
Rated 5 out of 5 by Gets the job done! Both my husband and I have problems getting to sleep at times. This L-Tryptophan works well. September 8, 2012
Rated 5 out of 5 by It REALLY helps me go to sleep reasonably fast! June 30, 2012
Rated 5 out of 5 by Works! I have to take 2 of these, but they do work for sleep. I will occasionally get up in the night if I have to, but I can usually fall quickly back to sleep. I've already purchased 2 bottles of this from Swanson and I plan to order more. Can't beat the price! :) November 7, 2011
Rated 5 out of 5 by Finally Something That Works! My twin sister recommended this for relaxation and sleep and it was amazing, even from the first day! I've highly recommended it to friends and family and will be buying another supply shortly. Thank you, Swanson Health Products!! September 17, 2011
Rated 5 out of 5 by help me to go to sleep very good!!!!!!!!!!!!!! July 26, 2011
Rated 5 out of 5 by Fantabulous! Wonderful! I take Now L-Tryptophan along with Now Thyroid Energy. My mood has improved tremendously. July 4, 2011
Rated 5 out of 5 by very effective I bought this amino acid to help with relaxation, so I get a better night sleep. I have to say it does relax me. I like Now Foods products. October 11, 2010
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Why Shop Swanson® Brands?

"With my personal 100% money-back satisfaction guarantee, you have nothing to lose and great savings to gain."

Lee Swanson, Founder of Swanson Health Products

Risk-Free Purchase Guarantee on NOW Foods Double Strength L-Tryptophan

If you are dissatisfied for any reason, we'll give you a full refund and pay return shipping.

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