Anecdotes are not data, of course, but my mosquito bite-riddled hide begged to differ with my grandmother's (and apparently, some scientists') belief that Avon's "Skin So Soft" worked as insect repellent back in the 1990s.
I can tell you that skin-so-soft definitely works against no-see-ums (or midges). It doesnt seem to have any effect at all on mosquitos.
I sprayed the oil on a table covered in both mosquitos and no-see-ums. the mosquitos flew away and the no-see-ums all died right where they were.