The endocannabinoid system (ECS) is a biological system composed of endocannabinoids, which are endogenous lipid-based retrograde neurotransmitters that bind to cannabinoid receptors, and cannabinoid receptor proteins that are expressed throughout the mammalian central nervous system (including the brain)
There's an increasing amount of research relating to the use of medical cannabis, particularly cannabidiol, in dogs. We recently reported on two trials ...
... where it's free of sulfates, synthetic dyes, artificial fragrance, and preservatives. But its main appeal is the cannabidiol oil, which is a psychoactive.