USING ADVANCED LABORATORY PROCEDURES. At Green Valley Nutrition we use a supercritical CO2 extraction process to extract hemp oil from our raw hemp material. Carbon dioxide-based extraction is considered to be the most environmentally friendly, safest, and cleanest method for extracting plant oils. It is commonly used to make various food and other products– and it’s becoming increasingly popular for extracting top quality hemp oil high in cannabidiol.After extracting crude hemp CBD oil from the plant material, we use specialized equipment to separate our hemp oil into distinguishable layers using a process called chromatography. This allows us to further refine our hemp oil into the pure CBD Isolate that we use in our products, while removing other useful compounds such as THC, fatty omega-3 acids, and terpenes that we can use to make other products. This proprietary secondary extraction process is what separates Green Valley Nutrition CBD products from many other full spectrum hemp oil products you see on the market today. At the end of the process, you are left with the most pure and potent form of CBD available anywhere today.