Shopping Cart

Prices and number of pills have been adjusted
to avoid exceeding daily limits.

  • ITEM
    Need Help?

    Your cart is empty.
    Click here to begin selecting your packs.


    L- tryptophan can be converted into 5-HTP, which the body uses to make serotonin and melatonin to promote restful sleep.

    Benefits of L-Tryptophan

    • Reduce restless leg symptoms
    • Promotes restful sleep
    • Nut-Free Vegan
    • Nut-Free Soy-Free
    • Nut-Free Nut-Free
    • Non-GMO Non-GMO
    • Made-Without-Gluten Made-Without-Gluten
    • Egg-Free Egg-Free
    • Dairy-Free Dairy-Free

    How L-Tryptophan works

    L-tryptophan is an essential amino acid that assists with creating proteins and brain-signaling hormones. L-tryptophan gets converted to serotonin in the body, which can help improve sleep and overall mood.

    See All Products

    Breaking it down

    Below we've broken down the main functions of our L-Tryptophan and the benefits it can provide.

    Restless leg symptoms can be caused by a lack of dopamine. L-tryptophan can be converted to serotonin in the body which then can be converted to dopamine. This may help relieve the irritating symptoms of restless legs.

    L-tryptophan can be converted in the body to melatonin by the pineal gland which helps regulate wake and sleep cycles to promote restful sleep.

    What the research says

    L-tryptophan has a large impact as a neuromodulator and is involved with a number of central nervous system functions including mood, pain, sleep and motor behavior. Studies have shown a decrease in restless leg syndrome symptoms with continued use of L-Tryptophan.

    • 1. Mitchell UH, Obray JD, Hunsaker E, et al. Peripheral Dopamine in Restless Legs Syndrome. Front Neurol. 2018;9:155

      View Source
    • 2. Richard DM, Dawes MA, Mathias CW, Acheson A, Hill-kapturczak N, Dougherty DM. L-Tryptophan: Basic Metabolic Functions, Behavioral Research and Therapeutic Indications. Int J Tryptophan Res. 2009;2:45-60.

      View Source
    • 3. Zagajewski J, Drozdowicz D, Brzozowska I, et al. Conversion L-tryptophan to melatonin in the gastrointestinal tract: the new high performance liquid chromatography method enabling simultaneous determination of six metabolites of L-tryptophan by native fluorescence and UV-VIS detection. J Physiol Pharmacol. 2012;63(6):613-21.

      View Source
    L-Tryptophan  Graph


    L-Tryptophan (Free-Form), Croscarmellose sodium, hydroxypropyl cellulose, stearic acid (vegetable source), magnesium stearate (vegetable source), vegetarian coating and silicon dioxide.

    Found In

    Restless Leg Support

    L-Tryptophan  Supplement-FACTS