Sally Hansen Hard As Nails applies a concentrated strengthening treatment to nails prone to breakage, peeling, and splitting. This formula creates a protective barrier that reinforces the nail plate, helping to restore resilience and support healthy growth for compromised nails.

The product functions as a dedicated hardener, addressing issues related to softness and lack of durability. By integrating this strengthener into a nail care routine, users can help prevent snaps and splits, keeping nails intact during movement. The formula strengthens the surface, making nails more resistant to impact and flexion-related damage.

Available in a 3ml container, this treatment provides ample product for consistent application. The brush enables precise control along the nail bed and free edge, ensuring even distribution without overflow. This treatment targets structural weaknesses, helping to maintain a harder, more durable nail surface over time.