Jump up ^ Devinsky, Orrin; Cilio, Maria Roberta; Cross, Helen; Fernandez-Ruiz, Javier; French, Jacqueline; Hill, Charlotte; Katz, Russell; Di Marzo, Vincenzo; Jutras-Aswad, Didier; Notcutt, William George; Martinez-Orgado, Jose; Robson, Philip J.; Rohrback, Brian G.; Thiele, Elizabeth; Whalley, Benjamin; Friedman, Daniel (22 May 2014). "Cannabidiol: Pharmacology and potential therapeutic role in epilepsy and other neuropsychiatric disorders". Epilepsia. 55 (6): 791–802. doi:10.1111/epi.12631. PMC 4707667. PMID 24854329.
In order to get this ultra-pure form of isolated CBD, a purifying process follows the actual extraction process. This purification process includes filtration where all plant material is filtered out of the extract. Following filtration, the extracted oil goes through what’s known as a “winterization process” that further removes any waxes or other plant materials that were still present after filtration.
The hemp used to make this CBD oil is extracted from a special variety of sustainably raised, organic hemp that is specifically bred to contain naturally high concentrations of CBD, while still containing all of the natural cannabinoids, terpenoids, and other compounds of the original plant. The resulting oil then is strictly tested for purity and is free from pesticides and heavy metals.