What is a common mistake made during the application of gel nails?

A common mistake during the application of gel nails is not curing the nails adequately under the UV light. Proper curing is essential for ensuring that the gel nails set correctly and achieve their intended durability. Inadequate curing can lead to a sticky finish, weak nails, and an increased risk of lifting or chipping. Each layer of gel needs to be cured for the recommended duration under the UV or LED lamp to ensure that the product hardens and bonds properly to the natural nail.

The curing process is crucial not only for the longevity of the manicure but also for the overall health of the nails. If the gel is not cured long enough due to insufficient exposure to the UV light, it can remain tacky or unset beneath the surface, which can lead to various issues like contact allergies or even nail infections.

While the other options discuss potential issues during application, they do not impact the fundamental requirement of gel nails needing complete curing to ensure that they are effectively set and durable.