Displaying 19 results of Arginine Impurities Arginine impurities refer to the presence of unwanted substances or contaminants in arginine, an amino acid that plays a crucial role in protein synthesis and immune system function. These impurities can be introduced during the manufacturing process or as a result of environmental factors. The presence of arginine impurities can affect the purity and quality of the final product, potentially leading to negative health outcomes if consumed. As such, it is important for manufacturers to carefully monitor and control for impurities during the production of arginine supplements.