Cannabidiol (CBD) is a naturally occurring compound found in the resinous flower of cannabis, a plant with a rich history as a medicine going back thousands of years. Today the therapeutic properties of CBD are being tested and confirmed by scientists and doctors around the world. A safe, non-addictive substance, CBD is one of more than a hundred “phytocannabinoids,” which are unique to cannabis and endow the plant with its robust therapeutic profile.
In other words, many popular claims remain unfounded – and overlook the fact that there's a difference between CBD that's studied in labs for particular conditions and CBD products that are sold to consumers for general well-being. "What happens is people say, 'Look, CBD is harmless and it doesn't get me intoxicated, so I'm going to take it for what ails me," says Dr. Jordan Tishler, a Harvard physician and CEO of InhaleMD, a Boston-area practice specializing in cannabis therapeutics. "Then they're going to get some perceived benefit because that's the way the placebo effect works, and then they go and trumpet this."
Since it is non-toxic and non-flammable, supercritical CO2 is preferable over chemical solvents like butane, hexane, and acetone, which can linger in the extracted oil if not purged correctly, rendering the oil toxic. It has also been noted that botanical essential oils extracted using supercritical CO2 are truer to the scent of the original plants than in other forms of extraction, meaning more of the plant’s chemical structure is retained in the oil with the use of CO2.