When it comes to buying CBD oil, you must be exceedingly cautious because there is a tremendous amount of misinformation and outright deceit within the industry. Many online resources may try to mislead you for profit or other disingenuous reasons. For instance, some Cannabidiol oil companies advertise that their products contain a specific concentration of CBD (displayed in either percentages or milligrams (mg). However, independent research has shown that many of these sellers and their products do not live up to their claims as their products contain far less CBD than they state in print. The Food and Drug Administration (FDA) issued warning letters to specific companies in 2016 because their products were found to contain far less CBD than advertised.