A novel and non-trivial system and method for restrictively exchanging and controlling product data between communication devices of a private network is disclosed. A processor in communication with a plurality of user communication devices is used for controlling and restricting the exchange of product data. In such network, the processor may establish a communication connection with an initiating communication device of an initiating user, receive initiating product data from the initiating communication device and corresponding first users (e.g., defined trusted users) data, provide the initiating product data to at least one available first user communication device, receive responding product data responsive to the initiating product data, and provide the responding product data to the initiating communication device. Additionally, the processor may provide interested users who have not been defined as trusted users with the initiating product data and receive responding product data from such interested users.