NOW Supplements, L-Tryptophan 500 mg, Encourages Positive Mood*, 120 Veg Capsules

NOW Supplements, L-Tryptophan 500 mg, Encourages Positive Mood*, 120 Veg Capsules
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Brand: NOW
(44)
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Product Details

Encourages Positive Mood* Promotes Restful Sleep* 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. Natural color variation may occur in this product.

SUPPORTS RELAXATION*/PREMIUM GRADE: An essential amino acid that is not synthesized by the body and must be obtained by diet or supplementation. ENCOURAGES POSITIVE MOOD*/PROMOTES RESTFUL SLEEP*: 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 tested to be free of Peak E and microbial contamination. CERTIFICATIONS/CLASSIFICATIONS: Soy Free, Nut Free, Vegan/Vegetarian, Non-GMO, Egg Free, Dairy Free, Made without Gluten GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation). Packaged in the USA by a family owned and operated company since 1968.

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Last Updated: 2025-08-30 08:45:04

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Product Specifications

Technical Details

Manufacturer -
Brand NOW
Item model number (number)
Color Off-White
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Additional Product Information

Product Id 1049391
User Reviews and Ratings
4.8 (44 ratings)
4.8 out of 5 stars
UPC 733739001672

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NOW Supplements, L-Tryptophan 500 mg, Encourages Positive Mood*, 120 Veg Capsules
Reviews: 44
app.ratings: (44)
Price:
$19.95 Visit walmart

Top User Reviews and Ratings (10 total reviews)

(3)
Reviewed in the USA on Jan 20, 2023

Used to love this,but my most recent bottle has an ingredient change: they have added rice flour and as a result I will not be purchasing again.

Anonymous • Review provider: walmart.com
(5)
Reviewed in the USA on Jan 07, 2020

I do not want to be without L-Tryptophan; it helps me sleep at night. I use the Swanson brand and have found it as good as other brands that I have used, and the price is better.

Anonymous • Review provider: walmart.com
(1)
Reviewed in the USA on Aug 23, 2019

An hour after taking this pill, the Powder from the capsule actually got exhaled like smoke, freaked me out, found multiple other reviews on other sites saying the same thing. Had to return. Back to Source Naturals caps/tabs

Anonymous • Review provider: walmart.com
(4)
Reviewed in the USA on May 09, 2019

Pharmaceutical sleep aids do not agree with me, but my other concern aside from sleep is the fact that i take amino acids which blocks the absorption of tryptophan in the brain. As is suggested, I've been combining L-TRYP w/ Gabba, 5-HTP, and magnesium and its been helping my sleep tremendously !!

Anonymous • Review provider: walmart.com
(4)
Reviewed in the USA on Nov 14, 2018

I have been using L-Tryptophan for several years. This was my first time trying NOW L Tryptophan. This will be the only time that I will change brands, as this seems the best.

Anonymous • Review provider: walmart.com
Showing 1 to 5 of 10 reviews
1