OUR LATEST EXTRA FORMULA WAS CREATED WITH OUR ORIGINAL FORMULA AS A BASE. EXTRA QUICKER DRYING MATERIALS ADDED. EXTRA HAS A WORK TIME OF UP TO 30 MINUTES FOR EXTENDED CREATE TIME. GREAT FOR NEWBIES OR PROFESSIONALS WHO WANT EXTRA TIME FOR LARGER ORDERS OR JUST EXTRA TIME TO CREATE. DRY TO THE TOUCH IN 2 TO 3 HOURS. A FAST SET WITH EXTRA WORK TIME! THE BEST OF BOTH WORLDS. 1 TO 1 MIXING RATIO. EASY MIX. BUBBLES WILL RISE TO THE TOP AND POP THEMSELVES IF NEEDED. CAN BE USED AS A FINISH BUT WE RECOMMEND OUR ORIGINAL NON YELLOWING FORMULA AS A TOP COAT. GREATEST SHINE IN THE INDUSTRY...STILL.