My feeling is that a can of 3-in-One (the name refers to "Clean, Lubricate, and Protect") household oil will do anything that ordinarily needs to be done in the way of gun lubrication and protection. You can certainly pay more for other similar products if you wish, but the benefits will be minimal. Outlandish product claims to justify high prices are all part of the sales game. The women's cosmetics business was based on it. To wit, regarding gun products - Plain old Johnson's Paste Wax is every bit the equal of the much-touted Ren-Wax, except it's about 5% of the Ren-Wax price.

Regarding gun cleaning, it's difficult to beat mineral spirits or a can of aerosol spray carb cleaner for that purpose.