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Quick Overview

L-Tryptophan (500 mg - 90 vegetarian capsules
Supports healthy sleep, mood, stress response, and satiety

The ingredients in L-Tryptophan can:

  • Support healthy sleep patterns
  • Encourage healthy mood
  • Help regulate the body’s natural stress response
  • Promote satiety
  • The supplement L-Tryptophan can help maintain healthy tryptophan levels with 500 mg of L-tryptophan per serving

Product Description
Serotonin is a neurotransmitter in the brain associated with positive moods and restful sleep. To produce and maintain optimum serotonin levels, your body requires tryptophan, an essential amino acid the body can’t produce. Life extension offers L-Tryptophan capsules to broadly and powerfully support tryptophan levels already within the normal range.



Serotonin is a hormone that cares for the connection between nerve cells. It is naturally found in the brain and digestive track and it positively impacts your mood and sleep. To produce and maintain optimum serotonin levels your body requires tryptophan, an amino acid your body cannot produce. In the human body, tryptophan has been shown to improve sleep, enhance mood and regulate stress. The basis for this formula is premium L-tryptophan, which has undergone significantly more rigorous manufacturing processes than regular tryptophan material to assure the highest purity and safety.

Supplement Facts
Serving size: 1 vegetarian capsule
Servings per container: 90
Amount per serving: L-Tryptophan 500 mg
Other ingredients: vegetable cellulose (capsule), microcrystalline cellulose, hydroxypropyl methylcellulose, stearic acid.

Dosage and use:
Suggested daily intake is one (1) to three (3) capsules on an empty stomach or as directed by a medical practitioner. For maximum absorption, to be taken with a small amount of carbohydrate, such as diluted juice. For maximum benefits, to be taken separately from proteins and amino acids.

If you are taking medication for depression (for example, MAOI and SSRI antidepressants), please consult your medical practitioner before taking this product. Concomitant use of L-tryptophan with antidepressant medications has the potential to increase the risk of serotonin syndrome. It manifests itself through symptoms like confusion, sweating, agitation, nausea, involuntary muscle contractions and racing heartbeat. Do not use L-tryptophan before driving or operating heavy machinery.

Do not purchase if outer seal is broken or damaged.

If you are undergoing treatment for a medical condition or if you are pregnant or lactating, please consult with your medical practitioner first. A food supplement should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Store tightly closed in a cool and dry place.

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Additional Information

manufacturer Life Extension
Tax Class Momspliktige varer 15%

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