Life Extension | L-Tryptophan

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500 mg, 90 vegetarian capsules

Gluten free | non-GMO | Vegetarian


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


L-Tryptophan is a premium-quality supplement that plays a crucial role in maintaining healthy tryptophan levels in the body. Tryptophan, an essential amino acid, is needed to produce serotonin, a neurotransmitter associated with positive moods and restful sleep.

Here are some key points about L-Tryptophan:

  • Serotonin Production: Tryptophan is essential for your body to produce and maintain healthy levels of serotonin, which is linked to positive moods and good sleep.

  • Sleep and Mood: Studies show that tryptophan can promote healthy sleep patterns and mood. It also supports the body's response to stress.

  • Satiety: L-Tryptophan can help you feel full, which is known as satiety.

This supplement provides 500 mg of L-Tryptophan per serving and is manufactured with strict quality and purity standards to ensure its effectiveness. It's a valuable addition for those looking to support their sleep, mood, stress response, and satiety.


    • 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.


     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.



    Consult your healthcare provider before using this product if you are taking medication for mood concerns, such as MAOIs or SSRIs. Use caution before driving or operating heavy machinery


    • Keep out of reach of children.
    • Do not exceed the recommended dose.
    • Do not purchase if the outer seal is broken or damaged.
    • If you have a medical condition, are undergoing treatment, or are pregnant or lactating, consult your physician before using nutritional supplements.
    To report a serious adverse event or obtain product information, contact 1-866-280-2852.
      Shipping Information

      Our on-line store is open 24/7 and we ship Monday through Friday, excluding some holidays. Orders received for products without shipping restrictions on its product page will ship the same business day when received before 12:00 p.m. PST. Orders in high demand will have an estimated production time listed on its product page and will ship according to the date listed.

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