The ingredients contain yeast and quality of this product is excellent. The packaging has no smell or taste, it is appropriate in size and it benefit my immune system taking it along with Essential Enzyme to improve my cholesterol levels and give me energy. I take this capsule daily, I have notice an improvement after only 1 week.
Our family has been taking Epicor for about 5+ years now. As soon as we feel the first signs of cold are coming, we take one tablet a day and .... well, we don't get colds or sick at all. Worst case, maybe one 2 day cold in winter which surfaces you and doesn't put flat on your back. Highly recommended natural remedy.