Shills Professional Gel polish is a long-lasting variant of nail polish made up of a type of methacrylate polymer. Directions : Apply Shills Professional UV / LED Soak Off Gel Polish on Base Coat or Structure Gel. Do Not Apply Directly on Natural Nails. Must Be Cured With LED Light or UV Light System. Finish With Top Coat . LED Curing Time – 1 Minutes UV Curing Time – 2 Minutes ( Darker Colors 3 Minutes) For Professional Use Only. KEEP OUT OF REACH OF CHILDREN . Discontinue use if sensitivity or irritations occurs.