Builder is a thick viscosity non-self leveling hard gel used for building and sculpting. BENEFITS Cool-curing UV/LED formulation with advanced resin technology. Is very flexible (great for ski jump nails or really flimsy natural nails, because when you have really flexible natural nails you need something that bends with them). Is very easy to file. Great for acrylic users switching to gel because it has more body to push around. Available in clear or a pink to match any skin tone. Formulated with high-quality resins that will never crack or chip. Cosmetic pink builder is the only product you can extend the nail plate with as it will camouflage imperfections in the nail plate. Baby Pink Builder is a medium semi-opaque pink.