L-Tryptophan

  • 500 mg, 90 capsules
  • Item # 01722

L-Tryptophan

  • 500 mg, 90 capsules
  • Item # 01722

Promotes healthy sleep, mood, stress response & satiety

Our premium-quality L-Tryptophan formula helps maintain tryptophan levels to promote healthy sleep and mood, encourage a healthy stress response, promote satiety and more.
Non-GMO Vegetarian

$24.75

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$0.25 / count | 30 - 90 Day Supply

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I take it at night to aid in sleep!

Toni, Roswell

Frequently Bought Together

  • This Item: L-Tryptophan, 500 mg, 90 capsules
  • L-Theanine, 100 mg, 60 capsules
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$42.75
Sale $38.48
Save $4.28

L-Tryptophan

500 mg, 90 capsules

  • $24.75
  • Sale $22.28
  • Save $2.47

$0.25/count | 30 - 90 Day Supply

Serotonin is a neurotransmitter in the brain associated with positive moods and restful sleep. Your body requires the essential amino acid tryptophan to produce and maintain healthy serotonin levels. Our formula delivers 500 mg of L-tryptophan that has undergone rigorous manufacturing processes to ensure the highest quality and purity.

L-Tryptophan promotes healthy sleep patterns and mood, while encouraging the body’s healthy response to stress.

L-Tryptophan Benefits

  • Supports healthy sleep & mood
  • Helps modulate your body’s natural stress response
  • Promotes satiety

Support Sleep & Stress Management

A lack of sleep can cause stress, which can lead to a lack of sleep. Break the cycle and get those sleep patterns back on track with our L-tryptophan. It contains 500 mg of L-tryptophan that has undergone a rigorous manufacturing process to ensure high quality and purity.

Why Life Extension?

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Efficacious Formulas

40 years of research dedicated to bringing you premium, scientifically-validated formulations.

Product Transparency

99% of our products are manufactured in the U.S. Our facility is NSF GMP registered, and a Certificate of Analysis is available for every product we produce.

Our premium-quality L-Tryptophan formula helps maintain healthy tryptophan levels in the body. Tryptophan promotes healthy sleep and mood, encourages a healthy stress response and more.

More facts about L-Tryptophan

More
These statements have not been evaluated by the Food and Drug Administration.
These products are not intended to diagnose, treat, cure, or prevent any disease.
  1. Rev Neurol (Paris). 2001;157(11 Pt 2):S16-9.
  2. Nutrients. 2016;8(1):1-15.
  3. PLoS Comput Biol. 2008;4(2):e4.
  4. Int J Tryptophan Res. 2009;2:45-60.
  5. Int J Tryptophan Res. 2018;11:1178646918802282.
  6. Arch Psychiatr Nurs. 2015;29(2):102-7.
  7. Psychoneuroendocrinology. 2013;38(2):201-8.
  8. Sci Rep. 2016;6:35727.
  9. Rev Assoc Med Bras. 2011;57(1):74-7.

Serving Size 1 vegetarian capsule

Amount Per Serving

L-Tryptophan

500 mg

Other ingredients: vegetable cellulose (capsule), microcrystalline cellulose, hydroxypropyl methylcellulose, stearic acid.

Non-GMO

Dosage and Use
  • Take one (1) capsule 1 to 3 times daily on an empty stomach, or as recommended by a healthcare practitioner.
  • For maximum absorption, take with a small amount of carbohydrate, such as diluted juice.
  • Best if taken separately from protein and amino acids.
Caution

Consult your healthcare provider before taking this product if you are taking prescription medications (e.g. MAOI and SSRI antidepressants) for depression. Concomitant use of L-tryptophan with antidepressant medications has the potential to increase the risk of serotonin syndrome, characterized by symptoms like confusion, sweating, agitation, nausea, involuntary muscle contractions, and racing heartbeat. Do not use L-tryptophan before driving or operating heavy machinery.

Warnings
  • KEEP OUT OF REACH OF CHILDREN
  • DO NOT EXCEED RECOMMENDED DOSE
  • Do not purchase if outer seal is broken or damaged.
  • When using nutritional supplements, please consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating.

To report a serious adverse event or obtain product information, contact 1-866-280-2852.

Actual Size

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