isnt redi-whip the non-cartridge kind? thats not good for you, there are alot of bad chemicals in there. and its loads more expensive than just buying the 24 packs of ISI's. or buy 300 and finish em in one night... nitrous binges i love it. just have some advil on you once you run out.
i thought the redi-whip was pretty clean--you'll have to check the ingredients, i think it used pure Nitrous Oxide for its propellant.