Radio Shack tuner/contact cleaner vs. DeOxit

[Jeffhs]

What is the difference, if any, between DeOxit and Radio Shack's own brand of tuner/contact cleaner? I've used RS tuner cleaner for years with good results. The other reason I use RS's brand of tuner cleaner rather than Deoxit is I cannot find the latter anywhere (the only electronics parts place near my town is Radio Shack; of course they won't carry anything other than their own stuff). Is Deoxit only available through certain authorized outlets such as RCA repair stations? I can't even find the stuff at Amateur Electronic Supply, an amateur radio supply house headquartered in Milwaukee with a branch store in my home town.