Counterfeit 3D printing filaments and resins undermine print quality, damage hardware, and erode brand trust. This guide explores how NFC and RFID technology embedded in filament spools and resin containers enables instant material authentication, automatic loading of 3D printer material settings, moisture and storage monitoring, and spool refill tracking. We cover practical implementation using NFC tags, Etiquetas RFID HF, y lectores portátiles, plus strategies for brand protection across online marketplaces and support for additive manufacturing consumables recycling.