Purity! you are breathing out CO2 right now. Evaporating CO2 from the supercritical CO2 extraction process leaves no residual solvents. Since this processes is done at low temperatures, the ideal organic state is retained. Kush Oil is 100% Pure essential oil with no additives. As a connoisseur seeking the ultimate purity and quality, look no further. Kush Oil is a connoisseur’s dream. Comes in .4ml, 510 threaded cart of pure C02 lab tested extract.