Broad Spectrum never contains THC. (Possibly trace amounts, but will never contain enough to be classified as psychoactive.) It can contain other minor cannabinoids, like CBN, CBG, etc. - Or it can be in an isolate form, pure CBD.

Full Spectrum describes CBD when it is paired with THC. You can also further enhance the Full Spectrum experience by pairing it with high quality terpenes... This is known as The Entourage Effect. Major and minor cannabinoids paired with natural, botanical terpenes - working together harmoniously to offer a next level user experience!