Full Spectrum CBD refers to CBD oil that includes all the naturally occurring compounds found in the hemp plant, including CBD, other cannabinoids (such as THC, CBG, and CBN), terpenes, and essential oils. The idea behind Full Spectrum CBD is that all of these components work together to create a more potent and effective product, known as the "entourage effect". In contrast, CBD isolate is a pure form of CBD that has had all the other plant components removed. Full Spectrum CBD typically contains trace amounts of THC, but usually less than 0.3%, which is not enough to cause a high. Some people prefer Full Spectrum CBD because they believe that all the hemp plant components work together to create a stronger and more effective product.