Penjamin Cartridge Ink-Pen - Smyle Labs

The product that launched a brand and a viral TikTok movement, the Smyle Labs Penjamin is the original disguised 510 battery that proved "stealth vaping" could be a legitimate product category. It writes with actual refillable ink, features a removable cap with a professional pocket clip, and hides a fully functional cartridge beneath the pen's barrel—a disguise so convincing that coworkers, classmates, and TSA agents have reportedly been fooled. The Smyle Labs Penjamin's viral success spawned an entire "jamin" family (Wandjamin, Pursejamin, Robotjamin, and more), but the original ink pen remains the bestseller because its form factor is the most universally useful—everyone carries pens. For retailers, the Smyle Labs Penjamin draws in demographics that never shop for vape products—they discover it on social media, walk in asking for "that pen thing," and often leave with additional purchases. Three voltage settings and a preheat function ensure the device isn't just a gimmick—it genuinely performs.