Builder gel is a type of gel polish with a thick viscosity that is used to create length, thickness, or strength on natural nails or nail enhancements with nail tips. It is a great option for growing out and strengthening natural nails, and it can be applied like a regular base coat. Builder gel is different from a standard gel polish base coat as it uses nail-strengthening ingredients and fills in cracks or breaks within the nail. Builder gel is applied in two layers: the builder gel and the topcoat. The builder gel helps to harden the polish, making it last longer, while the topcoat helps to make the polish look attractive as it protects it. Builder gel is used when you want to create length, thickness, or add strength to the nail. It is often used in conjunction with nail tips or forms to create extensions. Builder gel is a relatively new product on the market, and its popularity is increasing.