Photograph of Tryptophan under the microscope.

5-HTP precursor: Tryptophan

(5-HTP) is a direct metabolic precursor to the neurotransmitter serotonin. A very important brain chemical supporting mood and cognitive functioning, serotonin is also key in a number of areas of the body including the cardiovascular and gastrointestinal systems, and growth hormone release.

  • Possesses natural anti-depressant effects.

  • Supports feelings of well-being, calm, serenity, relaxation, & concentration.
  • Augments light therapy for depression.
  • A natural sleep aid.
  • An anti-anxiety agent.
  • Helpful in agitated or mild manic states.
  • May inhibit aggressive behavior.
  • Reduces carbohydrate cravings, thus aiding blood sugar control & weight loss.
  • Reduces symptoms of PMS.
  • With fibromyalgia, reduces the number of tender points, anxiety, pain intensity & improves quality of sleep.
  • Aids in general chronic pain syndromes.


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