This top coat is ok, but doesn't really work the way you might expect it to. The name "Insta-dri" is misleading for what it does. You apply your nail color, wait two minutes and apply this top coat and your nail polish is (to quote the label on the bottle) "dry to the touch in 30 seconds." While this is true - you need to know that "dry to the touch" only means if you barely touch your nails they won't smudge. If you bump your nails on something (grabbing your purse, put a shirt/jacket on, open a can of soda etc.) they're still going to smudge big time. You still need to wait 15-20 minutes or so (depending on how many coats of color you put on and how thick they are, humidity - you might be waiting a long time!) for your nails to dry completely before you can just go about your day without worrying about smudging them.

What's good about the product is that it does help prevent chips so your nail polish lasts longer than it would without the top coat. But, it's supposed to be a quick-dry product and it doesn't do that at all. There are other products out there that will help your nail polish to dry faster than it otherwise would that are far better than this.