They grow aloe vera plants that have been scientifically selected. Remember, not all aloe vera plants are the same. They selected one particular variety of Aloe Barbadensis Miller. They process the aloe by a unique trade secret method that selectively removes constituents which they feel are not desirable. No preservatives, chemicals and/or water have been added. Disclaimer These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.