This is my go-to top coat and I recently just discovered this a few months ago. I love it so much that I always make sure that I am stocked up. It dries my nail polish instantly as described. After applying my nail polish color, I usually apply a thin coat of this over my nails, wait a few seconds, and apply a second thin coat. It dries within 3 minutes (without smudging whatsoever). I usually place my nails in front of a fan to speed up the process of drying, but it is not necessary. The price is between $3-$4 dollars depending on the store where you purchase it. I would definitely recommend this to anyone that is impatient when it comes to doing their nails, like myself!