What is the primary purpose of using a nail hardener?

The primary purpose of using a nail hardener is to reinforce nail strength. Nail hardeners contain ingredients that penetrate the nail plate and help to bind the layers of the nail together, making them less prone to splitting, peeling, or breaking. This is particularly beneficial for individuals who have weak or brittle nails. By enhancing the structural integrity of the nails, hardeners promote healthier growth and a more resilient nail surface.

In contrast, enhancements to nail color or preventing nail growth do not align with the function of a nail hardener. Nail hardeners do not affect cuticle softness either; rather, they focus solely on improving the condition and durability of the nails themselves.