What is the essential tool needed for gel enhancement, aside from basic supplies?

The essential tool needed for gel enhancement is the synthetic brush. This brush is specifically designed to apply gel products smoothly and evenly onto the natural nails or nail tips. It plays a critical role in shaping the gel and ensuring that it adheres properly to the surface of the nail. The bristles of a synthetic brush are suited for working with gel products, allowing for better control and more precise application, which is essential in achieving the desired results in gel nail enhancements.

The other tools listed have their own purposes but do not directly apply the gel. An artificial finger model is typically used for practice or demonstration, while a metal cuticle pusher is utilized to prepare the nail plate by pushing back the cuticles. A UVA lamp, on the other hand, is necessary for curing the gel once it has been applied but is not a tool used during the initial application process. Therefore, the synthetic brush is indispensable for the application stage of gel enhancements.