Are Weed Vape Pens Safe? Start Over the years, THC potency in cannabis products has increased significantly with the development of concentrates or extracts. The most popular high THC product is the vape pen which typically contains Cannabis Oil vs Wax: What's the Difference? Vape Guy Wax Vapes Best Weed Wax Pen & Wax Vaporizers Vape Parts Mart HoneyStick Vape Pen Battery Kit 2 in 1 Oil and Wax Electronic Vaporizer Phantom Signature USB Rechargeable for 510 Thread Cartridge Variable Voltage 1000 mAh Vape for CBD & THC Oil No Defender Extreme Vape Pen for Wax with 2600mAh Internal Box Mod Battery Vape Batt