There are three main types of hemp CBD sources: CBD isolate, broad-spectrum hemp, and full-spectrum hemp.
CBD isolate is CBD void of any other ingredients or cannabinoids, while broad-spectrum hemp formulas include the additional compounds found within the cannabis plant, but intentionally minus THC. Registered RDN and certified holistic cannabis practitioner, Emily Kyle, MS tells mbg these may include “cannabinoids and naturally occurring terpenes,” but never THC.
Full-spectrum hemp, on the other hand, does have trace levels of THC, as well as all of the native botanical compounds (i.e., other phytocannabinoids plus terpenes, flavonoids, and fatty acids) you would find in a broad-spectrum CBD (hence the name “full”). However, in order to be considered federally legal under the 2018 Farm Bill, full-spectrum hemp in the U.S. cannot have more than 0.3% THC by dry weight. (In the European Union, it’s even more strict at less than 0.2% THC by dry weight).
According to Kyle, when determining what kind of CBD gummies are best for sleep, full-spectrum hemp is widely considered the best option, as the full array of cannabinoids and terpenes present contribute to the “entourage effect.”
Broad-spectrum hemp and CBD isolates, on the other hand, are better suited for those who do not want any trace of THC in their systems. Ergo, what kind of CBD you should take will ultimately depend on your personal needs and preferences. Remember to always discuss with your healthcare provider before starting any supplement.