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For over 20 years Thorne Research has set the standard for exceptional formulations, quality, and purity in the nutritional supplement industry. Since our humble beginnings in 1984 in a small, rented space in Tukwila, Washington, with just two employees (actually Al and Kelly Czap, the two owners of the company), our philosophy has been the same - provide the purest supplements humanly possible at a reasonable price. In 2007, our manufacturing plant, warehouse, and shipping facility - in Sandpoint and Dover, Idaho since 1990 - covers 76,000 square feet, and we now employ over 120 people. The business has changed dramatically, but the Thorne philosophy has stayed the same - manufacture the finest, purest, highest quality nutritional supplements in the world. We understand that people's lives actually depend on our products, and we take that responsibility very seriously.