Nutricology introduced pure organic germanium into the United States in 1986. The unique molecular characteristics of germanium sesquioxide (Bis–carboxyethyl germanium sesquioxide) make it virtually unreactive in the body, and its small particle size and unique structure permit it to be readily cleared in the urine as the intact molecule. Potentially, the body may use germanium as a cellular oxygenator. To assure the quality and purity of their germanium products, Nutricology carefully analyze every lot. Testing procedures include infrared spectroscopy, colorimetric assay, acid group titration and solubility tests.