Meet phytocannabinoid supplements We discuss a number of things you may not have known about the safe use of the medicinal components of the cannabis plant. When it comes to cannabis, THC and CBD are always in the spotlight. But this ancient plant contains hundreds of other medicinal substances. Many of these work together in unique ways, leading to endless benefits for the quality of our lives. The hundreds of cannabinoids are severely underestimated, but have a lot to offer. In this lesson we will delve into the human endogenous cannabinoid system.