From the Manufacturer's Label:
NADH is a coenzyme of vitamin b-3 that is essential for the production of ATP. Source Naturals brings you ENADA®, a patented, stabilized, absorbable form of NADH.
Manufactured by Source Naturals
Contains no salt, sugar, yeast, dairy, egg, gluten, soy, wheat, starch, preservatives or artificial color, flavor or fragrance. Suitable for Vegetarians and Hypoallergenic.