Why is it important to apply gel polish in thin layers?

Applying gel polish in thin layers is crucial primarily because it helps ensure that the polish cures properly when exposed to UV light. When gel polish is applied too thickly, the outer layer may harden while the inner layers remain uncured, which can lead to issues such as smudging or peeling. Thin layers promote even curing throughout the entire application, which is essential for the longevity and durability of the gel polish.

While faster application, finish texture, and removal ease are important aspects of nail care, they do not address the fundamental need for adequate curing, which is directly impacted by the thickness of the applied layers. Ensuring proper exposure to UV light is key to achieving a stable and long-lasting gel manicure.