CO₂ extracts are still essential oils, just collected in a different way. This extraction method uses liquid carbon dioxide as a solvent to remove the oil from plant material. Through CO₂ extraction, precious oils are collected at a much lower temperature, meaning that less oil (and it’s beneficial properties) are lost in the process. The fragrances of CO₂ extracts are more like the scent of the actual plants that the oils are taken from.