Source Naturals, L-Tryptophan with Vitamin B-6, 1000 mg, 90 Tabs Brand_4th & Heart Other Ingredients: Bison

Other Ingredients: Bison

Polymnia Sonchifolia Root Juice

Ingredients: Sunflower oil

reduces the size of the molecule making it easier for the body to absorb and faster to digest

psidium guajava (guava) fruit extract

Source Naturals, L-Tryptophan with Vitamin B-6, 1000 mg, 90 Tabs Brand_4th & Heart Other Ingredients: BisonProduct Description The essential amino acid L tryptophan is the precursor for the synthesis of melatonin and serotonin, a hormone and a neurotransmitter involved with mood and stress response. It helps support relaxation, restful sleep, and a positive outlook. This tryptophan tablet includes vitamin B 6, which is required to convert tryptophan to serotonin. If needed, L tryptophan is converted to niacin in the body, an important B vitamin. Source