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L-Tryptophan is an essential amino acid that is converted in the body to serotonin, an important neurotransmitter that supports many functions in the brain and is used to aid sleep. As we age, many find it more difficult to get a good night's rest and L-Tryptophan can help maintain serotonin levels to support normal sleep.*

Health Benefits

The benefits you may see when using Superior Labs L-Tryptophan include:

Promotes normal circadian rhythms and healthy sleep patterns *
Supports mood balance *
Encourages healthy serotonin levels *
Promotes relaxation *
Improves exercise performance *


As a dietary supplement, adults take 1 capsule two to three times daily, or as directed by your healthcare practitioner. Best when taken with a meal.


L-Tryptophan, Plant Cellulose (vegetable capsules), Organic Rice Concentrate


Do not exceed the recommended dosage. Please consult a physician if pregnant or nursing, taking medication, or have a medical condition before consuming this product. Not intended for use by individuals under the age of 18. Store in a cool, dry place. Do not use if safety seal is damaged or missing. KEEP OUT OF REACH OF CHILDREN.