Well, perfume oils can be EOs, fragrance oils, or a mixture of the two. But even fragrance oils must be diluted before they're safe to use on skin (if you go to a site that sells fragrance oils you'll see that they tell you to dilute so that the oil is at a concentration of only 10%!! I'm sure you could have a higher concentration than *that*, but they must be diluted to a reasonable degree).
Again, I'd love clarification ;;