What type of gel would typically be used to add strength to nail extensions?

Hard gels are specifically formulated to provide strength and durability to nail extensions. They cure to a solid form under UV or LED light, making them ideal for enhancing the sturdiness of enhancements like tips or forms. This type of gel can withstand the daily wear and tear that nails experience, making it a preferred choice for professionals looking to create long-lasting nail extensions.

Builder gels, while also strong, are a subtype of hard gels that are designed for creating the structure of the nail extension, often used for sculpting but can also be categorized under hard gels. Top coat gels are used primarily for finishing and providing a glossy finish, rather than adding structural strength. Soft gels, on the other hand, are more flexible and are typically used for temporary applications rather than for creating long-lasting extensions. Thus, hard gels are the most suitable choice to add strength to nail enhancements.