Excellent product. I now sleep much better and feel ...
Excellent product. I now sleep much better and feel overall more balanced.
Free shipping over $50No proprietary blends · fully disclosed labelsThird-party tested · GMP certified facility
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Reviews are a representative sample of real customer reviews aggregated from public data and matched to this product; written reviews are representative samples, not verified individual purchases.
3.8
out of 5
Excellent product. I now sleep much better and feel overall more balanced.
I can’t believe a customer is asking how much milligrams in one pill and the seller is ignoring the answer.. IT DOES MAKE A DIFFERENCE. I need 2000 each night, not 1000, as lower dosage does not work. Why would I pay more for 1000 mg pill if I need 2000 pills? How disrespectful that when asked, the seller won’t answer. Not getting the right sleep is serious for those of us that have difficulty. If you are misrepresenting your product, making someone pay $37 for 1000 mg pill when you are claiming it is a 2000 mg pill, but bottle states 1000 mg, that is misrepresenting your product. Shame on you!
These are 500mg per tablet, 2 tablets = 1g. This product is false advertising saying there is 1g per tablet.
I have used this supplement on and off for years and this brand is every bit as good as any others I have tried. I will stick with this brand.
This is a must have for those suffering from depression caused by decreased production of serotonin. It truly helps with mood, and just feeling better overall. I have been taking this for years after finding it a decade or two ago. I do believe the addition of B6 helps absorption.
Like the product for medical issues and a much better value at Amazon
Showing 6 of 8 reviews

Source Naturals. L-tryptophan is converted to niacin in the body, an important B vitamin. Source Naturals L-Tryptophan is extremely pure and is regularly tested to ensure the highest standards of quality Suggested Use: 1 tablet 1 to 2 times daily, between meals and preferably with fruit juice. To support restful sleep, take 2 tablets before bed. Well Made Supplements: Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no preservatives, or artificial color, flavor or fragrance. Over 40 Years of Trust. Source Naturals was created in 1982 by CEO Ira Goldberg to support everyone’s potential to enjoy optimal health. Manufactured in the USA. Manufactured in Scotts Valley, CA, under the Good Manufacturing Practices (cGMPs) established by the US Food and Drug Administration (FDA)