In an era where counterfeit pharmaceuticals and healthcare equipment pose serious risks to public safety, ensuring product authenticity is paramount. This paper presents Aërlink, a blockchain-based supply-chain management system designed to prevent counterfeit products by creating a decentralized, tamper-proof digital identity for each item. Leveraging smart contracts, Aërlink enables real-time product authentication through a secure and transparent ledger, empowering consumers with verifiable information about the products they purchase. Experimental evaluations demonstrate that the system offers a reliable, scalable solution to combat counterfeit trade in diverse industries, ultimately aiming to safeguard lives and bolster consumer trust.