Acrylic nails were invented in the 1950's by a dentist - Fred Slack - who tore a nail in the lab and used dental acrylics to repair it. He realized he was onto something and came out with the first "professional" acrylic product called Pattinails, using dental acrylic (he went on to start NSI Nail company which still exists), In the 1970s, Stuart Nordstrom came out with the first true professional acrylic nail product that was much easier to work...