There are different types of the best CBD online. Some CBD does contain a trace amount of THC, but by law, CBD sold online can contain a max of 0.3 percent THC. That’s not enough to get anyone high, but it can add to the medicinal properties in some cases. This is called full-spectrum CBD, and it contains all the terpenes, cannabinoids, flavonoids, fatty acids, and other nutrients necessary to create an overall feeling of health and well being.