GI Guard™ is a unique formula utilizing PepZin GI®, a proprietary zinc-carnosine complex.* PepZin GI® is gradually released in the stomach, protecting against free radicals, boosting mucosal secretions, and sustaining stomach lining integrity.* Numerous studies demonstrate its effectiveness in promoting GI health and helping to preserve stomach comfort.* PepZin GI® is a registered trademark of Hamari Chemicals, Ltd.