The lowest price on PureKana CBD oils. Fast Shipping on Pure Kana CBD oil and other Purekana Hemp oil products. See PureKana Reviews and purekana coupons here as well. Pure Kana products are made from industrial hemp plants grown on their farms. Thus, PureKana is CO2 extracted resulting in a solvent free, pure extract. As a result, the Full Spectrum Hemp Oil products are one of the highest quality and pure cbd oils on the market!