Coenzyme Q10 is also known as ubiquinone because it is naturally found in cells in the body, particularly in the mitochondria. Quest Coenzyme Q10 is suitable for vegetarians and vegans.Directions:Take one tablet daily with food. Ingredients:Di-Calcium Phosphate, Bulking agent: Microcrystalline Cellulose, Croscarmellose Sodium, Coenzyme Q10, Magnesium Stearate, Anti-caking agent: Silicon Dioxide, Glazing agent: Hydroxypropylmethylcellulose.