GeLavish “Build-it” is a low odor, self-leveling soak-off Builder Gel. Because the natural nail is the structure for a Gel Polish nail, “Build-it” was formulated to reinforce and protect weak or brittle nails providing a strong , level, ultra adhesive, and durable foundation for Gel Polish to bond to. If the natural nail is perceived weak for any reason, we recommend “ Build-it” be used in place of “Dual-it”(Base).