Sally Hansen’s Complete Salon Manicure Smooth & Strong Top Coat provides up to 90% smoother-looking nails instantly! This salon strength formula fills and smoothes ridges while it also grips color to deliver even finish. This top coat provides a gel-like finish that eliminates imperfections. It not only hardens weak nails but also adds density to thin nails to prevent splitting. This Biotin and Spirulina enriched self-leveling action formula gives smooth, salon-perfect and on-point application results.