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60 vegcaps               120 vegcaps

L-tryptophan plays a role in the regulation of appetite and synchronization of sleep patterns.*


L-tryptophan is an essential amino acid; therefore, it is not synthesized by the body and must be obtained from the diet. In the brain, tryptophan is converted into serotonin, a neurotransmitter involved in feelings of well-being, calmness, personal security, and relaxation.* It also plays a role in the regulation of appetite and synchronization of sleep patterns.* Every lot of Protocol For Life Balance® L-tryptophan is tested to be free of Peak E and microbial contamination.

• Encourages Positive Mood*
• Supports Relaxation & Restful Sleep*

Suggested use

Suggested Usage: As a dietary supplement, take 1-2 capsules twice daily on an empty stomach, with the final dose at bedtime, or as directed by a health care practitioner.

Tryptophan supplements may interact with CNS depressants, antidepressants (SSRIs, MAOIs), and other serotonergic agents such as St. John’s Wort and 5-HTP. Consult your healthcare practitioner if you are taking medications or herbs, are pregnant/nursing, or if you have a liver impairment. May cause drowsiness. Do not use alcoholic beverages while operating heavy machinery.

Natural color variation may occur in this product. Do not eat freshness packet. Keep it in a bottle.

Product Info
Serving Size:2 VCap
Servings Per Container:60
Amount Per Serving
L-Tryptophan (free form) (2-amino-3-indolylpropanoic acid) (1,000 mg)1 g

Other Ingredients:

Cellulose (capsule), Cellulose powder, Stearic Acid (vegetable source)


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