Cannabis oil is a concentrated extract derived from the cannabis plant, containing a mixture of cannabinoids like THC and CBD .What is Cannabis Oil? Definition: An extract made from cannabis plant flowers or resin using solvents or specialized extraction techniques .Key Compounds: Contains varying levels of cannabinoids, chiefly THC (tetrahydrocannabinol, which causes psychoactive effects) and CBD (cannabidiol, which is non-intoxicating).Distinction: Regulated medical-grade prescription oils differ significantly from over-the-counter hemp or CBD food supplements