Zein is the water-insoluble protein from corn, extracted by physical rather than chemical means. It is, therefore, totally natural. It is a food ingredient, not an additive. It is unique in its ability to form odorless, tasteless, clear, hard and almost invisible edible films. Since FloZein Products Zein films are completely safe to ingest, they are the perfect coating for foods and pharmaceutical ingredients. Zein has been shown to be remarkably resistant to bacterial attack, which frequently decomposes other proteinaceous material.