This document proposes a method to identify fake and counterfeit products using recharge coupons inserted inside product packages. When a customer opens a product and uses the recharge coupon code via SMS, a server will check if the code is valid and send a message to the customer with the product details and whether it is genuine. This allows customers to verify products and get free talk time, while also providing companies with customer data to improve products and reduce counterfeits. The method is expected to reduce counterfeit products by over 94% and allow companies to directly monitor daily sales.