2 X Source Naturals, L-Tryptophan, 90 Tablets
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. Ingredients Microcrystalline cellulose, stearic acid, magnesium stearate, silica, and modified cellulose gum.