With equal parts CBD and THC, Get Zen's 650mg 1:1 Get Zen RSO (Rick Simpson Oil) Syringe, is an excellent option for those looking to precisely dose edible cannabis oil. A popular option is to apply oil into a chocolate chip and place in cheek to mask the full flavor of the cannabis extract while still allowing oral absorption. Another popular option is to dispense RSO onto a banana and swallow. Ingredients: Ethanol Extract Full Spectrum Cannabis Oil. Get Zen is on a mission to improve the quality of life for patients by manufacturing the highest quality of cannabis RSO and to change the way cannabis is perceived by the medical community and the general public.