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Source Naturals

L-Tryptophan with Coenzyme B-6

Item: SN210

In Stock

Swanson $12.31
Retail $21.98
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500 mg 60 TabsOther Sizes

  • Supports the sleep/wake cycle



  • Promotes a positive outlook



  • Helps you feel at ease


Source Naturals L-Tryptophan with Coenzyme B-6 supports relaxation, restful sleep, and positive mood. It plays a part in the synthesis of both melatonin and serotonin, hormones involved with mood and stress response and sleep/wake cycles. L-Tryptophan also supports immune functions because it is the body's precursor to the kynurenines that regulate immunity. If needed, it also 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. Coenzyme B-6 is required to convert tryptophan to serotonin.

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Product Description:

L-Tryptophan with Coenzyme B-6

  • Supports the sleep/wake cycle



  • Promotes a positive outlook



  • Helps you feel at ease


Source Naturals L-Tryptophan with Coenzyme B-6 supports relaxation, restful sleep, and positive mood. It plays a part in the synthesis of both melatonin and serotonin, hormones involved with mood and stress response and sleep/wake cycles. L-Tryptophan also supports immune functions because it is the body's precursor to the kynurenines that regulate immunity. If needed, it also 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. Coenzyme B-6 is required to convert tryptophan to serotonin.

Product Label:

L-Tryptophan with Coenzyme B-6

Supplement Facts

Serving Size 3 Tablets

Servings Per Container 20

  Amount Per Serving % Daily Value
Vitamin B-6 (from 13 mg of pyridoxal-5'-phosphate [Coenzymated™]) 9 mg 450%
Calcium 60 mg 6%
L-Tryptophan 1.5 g

†Daily Value not established.

Other Ingredients: Dibasic calcium phosphate, stearic acid, modified cellulose gum, and colloidal silicon dioxide.

Suggested Use: 1 tablet three times daily, between meals and preferably with fruit juice. To support restful sleep, take 3 tablets before bed.

WARNING: If you are pregnant, breastfeeding, may become pregnant, or are taking medications such as SSRI's or MAOI's consult your healthcare professional before using this product.

Terms and Ingredient Definitions

L-Tryptophan with Coenzyme B-6

Swanson $12.31
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Shipping Restrictions

Countries with restrictions on this product:

  • Canada

More information on shipping restrictions

States with restrictions on this product:

  • Alberta
  • British Columbia
  • Manitoba
  • New Brunswick
  • New Foundland
  • Northwest Territory
  • Nova Scotia
  • Nunavut
  • Ontario
  • Prince Edward Island
  • Quebec
  • Saskatchewan
  • Yukon Territory

More information on shipping restrictions

Source Naturals L-Tryptophan with Coenzyme B-6 Reviews

Summary of Customer Ratings & Reviews

Customer Ratings & Reviews

Rated 4 out of 5 by 5 reviewers.
Rated 1 out of 5 by Not for me but.... Sorry but in all honesty this didn't work for me at all. I have heard it works ok for others but after weeks it did nothing for me. Still you might want to try it because L-Tryptophan has a good reputation. June 4, 2015
Rated 4 out of 5 by L-tryp with B6 I was taking B vitamins for L-Tryp. With this prod I don't need to buy, and take B6. It's convenient and the dosage is better than mine. May 20, 2013
Rated 5 out of 5 by L-Tryptophan The same product at my local health store is selling for 45% more. Source Naturals has high quality L-Tryptophan. April 12, 2012
Rated 5 out of 5 by Love it! Great product, great value! Highly recommend. This product has really helped me April 5, 2012
  • 2016-02-08 T11:05:40.330-06:00
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  • loc_en_US, sid_SN210, prod, sort_default
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