Which product is used to improve the overall strength and durability of a gel enhancement?

Builder gel is specifically formulated to enhance the strength and durability of gel nail enhancements. This type of gel is thicker in consistency, allowing for better structure and support for the nails, which is crucial for preventing breakage and ensuring longevity. It can be used to create the desired shape and is often applied in layers to build up the nail's strength, making it ideal for those wanting a robust enhancement.

In contrast, other products mentioned serve different purposes. For instance, a UV top coat primarily provides a glossy finish and adds a layer of protection to the finished nail, but does not enhance structural integrity. UV bonding gel helps create adhesion between the natural nail and the enhancement but is not designed to build strength on its own. A base gel serves as the foundation for the gel application, aiding in adhesion, but like the bonding gel, it doesn't provide the same level of strength that builder gel does. Thus, builder gel stands out as the optimal choice for improving overall strength and durability in gel enhancements.