CBD oil is extracted from the whole hemp plant by a supercritical process. It is the high CBD and high cannabinoid content oil extracted from the complete plant that is desirable and proven effective for various therapeutic applications.
Ingesting cannabis will last much longer and could get you higher (or relieve pain). Make your own delicious Dragon Teeth mints or Cannabis chocolates; small candies you can take and use anytime, any place! MARIJUANA - Guide to Buying, Growing