RSO, or Rick Simpson Oil, is named after a Canadian cancer patient turned cannabis activist. RSO is sometimes referred to as a whole plant or full spectrum extract because it retains the full cannabinoid, terpene, and chlorophyll profile of the source material by using specific solvents.

RSO, or Rick Simpson Oil, is named after a Canadian cancer patient turned cannabis activist. RSO is sometimes referred to as a whole plant or full spectrum extract because it retains the full cannabinoid, terpene, and chlorophyll profile of the source material by using specific solvents.