Sally Hansen Miracle Nail Thickener strengthens and thickens weak, thin nails in just one application. Its advanced formula helps protect nails from peeling and splitting, promoting healthy nail growth. Key Benefits • Strengthens and thickens weak, thin nails. • Protects against peeling and splitting. • Visible results in one use. • Suitable for all nail types. How to Use Apply one coat to clean, dry nails. Use alone or as a base coat.