Source Naturals L-Tryptophan with Coenzyme B-6 500 mg 120 Tablets

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$24.99 $43.50


  • Serotonin is a neurotransmitter
  • L-Tryptophan is a precursor in the production of serotonin and melatonin
  • Contains no yeast, dairy, egg, gluten, soy, wheat, sugar, salt
  • Contains no preservatives, artificial color, flavor, or fragrance

The essential amino acid L-tryptophan helps support relaxation, restful sleep, and a positive outlook. It plays a part in the synthesis of both melatonin and serotonin, hormones involved with mood and stress response. This tryptophan includes the activated coenzyme form of vitamin B-6, called P-5-P, that is required to convert tryptophan to serotonin. L-Tryptophan also supports immune functions because it is the body's precursor to the kynurenines that regulate immunity.

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