About the product
- This tryptophan includes the activated coenzyme form of vitamin B-6, called P-5-P, that is required to convert tryptophan to serotonin.
- Source Naturals l-TRYPTOPHAN is extremely pure and is regularly tested to ensure the highest standards of quality.*
- Suggested Use: 1 tablet three times daily, between meals and preferably with fruit juice. To support restful sleep, take an additional 3 tablets before bed.
- Over 40 Years of Trust. Source Naturals was created in 1982 by CEO Ira Goldberg to support everyones potential to enjoy optimal health
- Manufactured in the USA. Manufactured in Scots Valley, CA, under the Good Manufacturing Practices (cGMPs) established by the US Food and Drug Administration (FDA)