Bolster soft, thin and ridged nails with this emergency thickener. *Measured layers of nail protection. When your nails need protection against bending and breaking, our exclusive Calcium and Ceramic Gel formula builds a hard shield. Ridges and imperfections are filled in, for thicker, harder, stronger nails. Apply 1 coat to bare nails. For extra thin nails, apply daily for up to 4 days. Use alone or as a base coat. Miracle Nail Thickener™ is a must-have for any emergency 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.