How Do Top Coats For Nails Work?

Top coats can be worn over your favorite fashions in bad weather to cover your clothes.  They can also be worn on your nails to protect that expensive mani/pedi you treated yourself to recently.  In essence top coats for nails work in a similar fashion to the coat variety.  They cover the last color application and work to guard it against chips, smudges or other appropriate nail endangerments.