The far-reaching endocannabinoid system is generally considered to act as a kind of internal thermostat, regulating biological reactions in response to changes in the external environment. One primary internal response to environmental changes is inflammation, hence the strong association between cannabis use and reductions in pain, muscle/joint soreness, and anxiety.
The endocannabinoid system functions via both naturally produced and artificially introduced cannabinoids—of which over 160 have been discovered so far. Cannabinoids are found in various sources, from carrots and black pepper, to the cannabis plant, to the body itself.
Anandamide, for example, is an internally produced endocannabinoid associated with a sense of wellbeing, while 2-Arachidonoylglycerol is an endocannabinoid connected to the regulation of cognition and energy balance.
Tetrahydrocannabinol (THC) and cannabidiol (CBD) are the two major cannabinoids contained within cannabis. These ingredients create different assortments of effects by boosting and/or mimicking different sets of naturally-produced endocannabinoids.
Without getting too deep into the science (which is still being consolidated itself) THC primarily works by mimicking anandamide while CBD does not. As a result, the two cannabinoids create different effects on the body. Both are associated with reductions in inflammation and anxiety, but THC is also intoxicating, commonly producing feelings of euphoria and psychedelic mindsets.
All of this means that a CBD product that doesn’t contain THC simply cannot produce the same psychoactive, high, or tippy effects as a THC product. Hopefully, this provides those worried about taking CBD products, or giving them to their pet, some assurance that CBD oil is aimed at different areas of the body than THC, and will not cause the same internal experience.