Sally Hansen® Hard As Nails Xtreme Wear. With patented micro-shine complex for reflective brilliance and Xtreme shine. Up to 7 Day Wear. 1. For best results, use your favorite Sally Hansen® base coat on clean dry nails. 2. Shake gently. 3. Apply 2-3 coats, letting each coat dry before applying the next one. 4. Finish with your favorite Sally Hansen® top coat for maximum shine, and to make manicures last. For Use On: Nails. Color Finish: Smooth. Color Family: Multiple Colors. Health Concern: Nails Heath. Travel Size: No.