As a base coat, our Micro-Polymer formula reinforces nails, boosting strength and flexibility. As a top coat, it protects nail color with a shiny, chip-resistant finish. Get shielded nails that defy damage. Double your nail protection with Ultimate Shield base and top coat™! A must-have in any serious mani kit. Step into your always-on salon. No menu. No rules. America’s #1 nail brand, Sally Hansen puts the power of self-made beauty in your hands, with salon-tested solutions and on-trend colors.