This applies very smoothly and evenly, covering most blemishes and imperfections.  I noticed that a little goes a long way as it doesn't take much for good coverage.  It covered black Sharpie drawn artwork on the back of my hand very well, so I think it will probably cover a tattoo.  It will rub off some on your clothing so be thoughtful about what you will be wearing near this make-up.  It's not easy to wash off either, most of it comes off on the towel.