Brand: Source Naturals
- 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.
Details: This tryptophan includes the activated coenzyme form of vitamin B-6, called P-5-P.
Package Dimensions: 4.0 x 2.2 x 2.1 inches