A cross between nail care and make-up, Active Smooth is a nail perfector. It protects, nourishes and helps reduce imperfections in even the most damaged or textured nails. With a formula enriched with castor fiber and hexanal, ridges are smoothed, imperfections erased and nails fortified. A cross between nail care and make-up, Active Smooth is a nail perfector. It protects, nourishes and helps reduce imperfections in even the most damaged or textured nails. With a formula enriched with castor fiber and hexanal, ridges are smoothed, imperfections erased and nails fortified.