FZANEST Builder Gel Nail Polish is the perfect choice for achieving perfectly shaped nails. This self-leveling formula is easy to apply with the all-in-one brush and provides a natural look and feel. The thicker viscosity gel enhances the strength of the natural nail, making it perfect for those with thin nails. It can be used as a builder gel or a sculpting gel for nail extensions and can be worn alone or underneath gel polish color. It is also environment-friendly, with healthy ingredients, low smell, non-toxic, and 100% cruelty-free. FZANEST Builder Gel Nail Polish works with both UV and LED lamps and is the perfect choice for achieving perfectly shaped nails.