Frink's Lab is a premium building in The Simpsons: Tapped Out. It will cost the player 150 donuts to purchase, but can be won in the Homer Buddha. Upon completion of Frink's Lab, you will unlock Professor Frink as a permanant character with premium payouts.
Frink's Lab has made very little appearance in The Simpsons TV Show. Professor Frink is commonly shown to live in a house, and many players believe that his house would have been a better building than his lab.