Biovanta Immunity All-Natural Tart Cherry Throat Lozenges are drug-free immunity boost throat lozenges you can use on-the-go to promote a healthy inflammatory response. These sugar free cough drops contain an active immune complex to boost your natural defenses and provide immunity aid. Pure and natural, this immune support supplement is made from 100% naturally sourced ingredients derived from plants and other natural sources, a natural alternative to sore throat lozenges. Over a decade in the making, Biovanta was developed by a molecular biologist, nature lover, and mom in New York City. It is built on a strong belief in the power of nature.