Abstract: A method of identifying authentic products versus counterfeit products using tow unique identifier codes is accomplished by providing a first identifier code on the exterior of a product package that identifies the product, the appropriate location for sale, the number of times the code has been scanned and whether or not the product is registered. This information alerts potential purchasers if the product is either counterfeit, or an unauthorized resale. The purchaser then opens the package and is provided a second identifier code for registering the product. The registration information includes retailer and price information, alerting the manufacturer of unauthorized retail activity, and also changes the product designation in the manufacturer database to indicate the product may not be resold. That information is then associated with the first identifier code in the event it is rescanned by another potential purchaser.