This gut lining mastery formula helps improve gastrointestinal permeability which can severly impact our immune function and inflammation. This is a defense against intestinal permeability by providing specific botanical and nutritional ingredients shown to decrease intestinal permeability. The FDA has not approved these statements and you are taking this formula between meals at your own risk to help close the large gaps that pathogens can make in our intestinal walls. This works well with Fiber, FBR and probiotics. This can be added to other gut herbal programs for faster results. Contains berberine derived from goldenseal root, genistein, licorice root, aloe and more.