You look to be confused between petroleum and petrolatum.

It appears that some people are memetically opposed to using petroleum-derived skincare products — at least, that must be why some of them are advertised as "petroleum-free".

Anyway, there is a large variety of moisturising goos one can use instead, based on such things as lanolin or cocoa butter. As Clarity is in Australia, he (I think) might try finding a local branch of the Body Shop and asking the advice of the sales assistants.