Is there skunk oil in perfume?

Yes indeed. They use the musk from a skunk or a civet cat as a constituent that carries the scent of the perfume. The distilled water and types of oil that are in perfume will not hold the perfume's scent for very long at all, so they use the skunk/cat oil because the main compound in the musk (butyl mercaptan) holds a scent for a very long time. If you have ever been sprayed by a skunk, or know someone who has been sprayed by a skunk, you should understand that the smell lasts for several days. Perfumes usually do not last that long though, because the amount of musk is very little and very deluded. So, perfume might last a couple days as opposed to a weeks or so, but at least that means you're not wearing as much skunk piss as you originally thought. isn't that comforting?