Polyrizon Ltd., was incorporated in Israel in January 2005. The company is a development-stage biotechnology company specializing in the development of Innovative Medical device hydrogels delivered in the form of nasal sprays, which form a thin hydrogel-based protective barrier within the nasal cavity that prevents viruses and allergens from contacting nasal epithelial tissue. The company's C & C hydrogel technology consists of a mixture of naturally occurring building blocks, is provided in the form of a nasal spray, and can be used as a "biological mask" with a thin protective barrier inside the nasal cavity. The company is further developing certain aspects of its proprietary C & C hydrogel technology, such as bioadhesion and extended retention time at the site of nasal deposition for intranasal administration. The company refers to its standalone platform technology that focuses on API nasal delivery as T & T.