CBD oil is made from the hemp - cannabis plant containing less than 0.3% THC. It has only one non-psychoactive cannabinoid called CBD. RSO oil is a cannabis extract containing a full spectrum of chemical components from the whole plant, including massive amounts of psychoactive Tetrahydrocannabinol (THC). People have experienced amazing benefits from using both CBD and RSO, but RSO is the main ingredient when it comes to defeating cancer.