Let your nails grow longer once again without splitting or breaking? The perfect solution: Maybelline Express Manicure Nail Hardener. This 3-in-1 nail hardener strengthens soft and brittle nails and reliably protects them from chipping and breaking thanks to its diamond formula. The added benefit: your manicure lasts significantly longer. Worn alone, the nail hardener gives nails a delicate, well-groomed shine. When applied as a base coat, it prevents unsightly discoloration. And when used over nail polish, it further enhances durability. Maybelline Express Manicure Nail Hardener: a true power treatment for your nails.