Brain serotonin precursor; supports a sense of calmness and restful sleep ‡

L-Tryptophan is an essential amino acid and a precursor for the synthesis of serotonin. Tryptophan crosses the blood-brain barrier and is converted to L-5-hydroxytryptophan (5-HTP), which in turn is converted into serotonin. Serotonin is an important neurotransmitter necessary for the regulation of appetite, mood, and melatonin production.^‡

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^‡FDA Disclaimer: The information about this product and statements made are provided by the manufacturer, except customer reviews which are not evaluated. See www.douglaslabs.com for information about the relationship between this product and any claims made. Results may vary from person to person based on body size and other factors, and the effectiveness is not guaranteed for you. Always seek the advice of your healthcare professional about taking dietary, nutritional, herbal or homeopathic supplements.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.