Do I need a base coat? You don’t! Our polish is formulated with the base coat already built-in. Some people like a sheer coat of EC underneath darker colors, but this is not necessary for everyone! Have more questions? Submit A Request Related articles Does my polish need two or three coats? Does the cuticle serum come in a single unit available for purchase? Why are the clippers flat? Does your remover take off gel? Do I dip my clean-up brush in the remover?