We asked derms for tips on naturally repairing weak or brittle nails. Shop the best nail strengthening products by Onyx, ...

Using the best nail strengthener may be ... Can’t be used under gel polish This serum from OPI is another tried-and-true nail-strengthening product that I always come back to.

When both polish and remover dry on your nails it can actually make the nail brittler” advises Draper. Use a nail hardener: A nail strengthener and hardener serves one simple, yet very effective ...

but can potentially feel greasy upon application and may be best worn overnight. Nail hardeners typically have ingredients that strengthen the nail structure, reduce brittleness and help prevent b ...