Rick Simpson Oil

Rick Simpson Oil, or RSO, is a type of cannabis oil with very high levels of THC, which is extracted using ethanol. It was developed by Canadian engineer Rick Simpson, who invented the extraction recipe for treating his own skin cancer in the early 2000s. Simpson’s story of successfully curing skin cancer by applying his own oil led to the subsequent fame of Rick Simpson Oil. Simpson became an advocate for medical cannabis in the treatment of skin cancer, and encourages cancer patients to make RSO themselves with instructions he published on his website.