Doctor?s Best Betaine HCl/Pepsin/Gentian Bitters contains three nutritional factors that perform complementary functions designed to support the efficiency of the digestive process. Supplementing with Betaine HCl may support the stomach?s digestive capacity. Pepsin is an enzyme produced by the body to digest protein-containing foods in the stomach. Pepsin works in conjunction with stomach acid to support protein digestion. Gentian is an herb used to promote digestive capacity and tonify the digestive tract. Its bitter nature may help to stimulate the body?s production of digestive enzymes. At Doctor?s Best we lead with science. Our products are backed by research and crafted using pure ingredients carefully sourced from around the globe. Since 1990 we have dedicated ourselves to providing highly effective nutritional supplements that enable you to live a healthier lifestyle. We want nothing more than to see you and your family thrive!