... . A,Professional UsageB,Simple Usage1.Primer1.Primer / Base coat2.Base Coat2.Two layer Gel polish3.Adhesion gel / Top coat3.Top coat4.Two layer ... Nail Gel and UV Nail Gel. There are Rainbow series Nail Gel, Classic Series Nail Gel, Mini Series Nail Gel, Magic Gel, Base Gel, Bonding Gel, Builder Gel, Anti-setting Gel ...