Our process is a trade secret Imagine a vapor cartridge so flavorful that you can taste the strain it came from. The terpenes in our vapor cartridges are the authentic aromas and flavors that exist in the plant unchanged by our secret process. Super Smooth and Super Effective Tickling in the throat or irritation of the throat is usually caused by residual solvents or any of the commonly added substances to vapor cartridges to make them work. The absence of throat irritation tells all. If the vapor cartridge you use irritates your throat and lacks a robust authentic taste try Master Extractors. The Gold Standard in Vapor Cartridges Our proprietary process uses: NO Petroleum Solvents NO Butane NO Alcohol NO Propylene Glycol NO Glycerin NO Terpene removal or additions