Professional usage: Step 1: Clean Nails then nail surface as normal process. Step 2: Fully shake up the polish, it can make the gel polish color be balanced. (Important) Step 3: Apply a thin layer of base gel and cure under nail lamp. Step 4: Apply 1st layer of Thermal Gel and cure under nail lamp again. Step 5: Apply 2nd layer of Thermal Gel and cure under nail lamp again.(Recommended but not necessary) Step 6: Apply No Wipe Top Coat and cure under nail lamp again. Or regular Top Coat but remove the tacky surface with cotton soaked with cleanser or 95°alcohol after curing.