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)