Liquid Zeolite is produced according to Good Manufacturing Practices (GMP) in an FDA licensed and GMP certified manufacturing facility. They are one of the WORLD'S LEADING MANUFACTURERS of Liquid Zeolite!  Making & Selling Zeolite for nearly 11 Years!  They are the Original Zeolite Company, they have been selling zeolite since 2000, the MLM brand didn't start selling zeolite until 2004!  Many other brands use chemicals, solvents and/or high-heat treatment methods to process their zeolite into a liquid form. Natural intracellular Liquid Zeolite utilizes the newest most advanced proprietary natural holistic manufacturing process of using natural organic supplement-grade humic minerals (a highly regarded organic medium) which enables the zeolite to penetrate cells readily.