Three types of cannabinoids exist:
- Endocannabinoids: naturally occurring lipids found in all mammals involved in a variety of physiological processes including appetite, pain sensation, mood and memory.
- Phytocannabinoids: found across the three species of cannabis: Cannabis sativa, Cannabis indica, and Cannabis ruderalis. Over 100 phytocannabinoids so far reported.
- Synthetic cannabinoids: artificially created analogues of naturally occurring cannabinoids.