Nail strengtheners are specialized products designed to improve the durability and resilience of nails. They often contain ingredients like proteins, vitamins, and minerals that help to nourish and fortify the nail structure. These products can be applied as a base coat before nail polish or used alone to promote healthier nails. Many people use nail strengtheners to combat issues such as brittleness, splitting, or peeling. Regular application can lead to stronger, longer nails over time. It's important to choose a product that suits your specific nail needs and to follow the instructions for the best results.