PhenoPen differs from other, similar vaping devices available on the market today in several ways. PhenoPen’s extract is made from 100% pure hemp with added CBD and terpenes. It contains zero chemical carriers (PG, VG, MCT) and nothing other than nature’s finest in e-liquid form. The other difference with PhenoPen is the fact that each 0.5ml cartridge contains 300mg of CBD. This means that the actual amount of CBD delivered to the system is higher from PhenoPen than from other devices.