For those who are willing to buy it from the Cannabis stores (Καταστήματα κάνναβης) online, the only issue is about the originality of the herb that they find from the stores offline or online. The pure extracts are not easy to obtain today for the so many limitations in different parts of the world to cultivate marijuana. So, the organized and streamlined methods of cultivating cannabis, is seen only in certain parts of the world.
This yield is sent to the industries for making varied health related products in particular. There are additives that are added to the hemp oil (λάδι κάνναβης) to give that desired effect. The pharmaceutical experts know better about the benefits of the hemp products (προιόντα κάνναβης). That is the major reason why you see some of the items that are sold in the Cannabis stores (Καταστήματα κάνναβης) are a bit costlier.