Brittle Nails? Here's How to Keep Them From Breaking, According to a Manicurist

One surefire way to keep your nails healthy is to stop using them to pick apart a package or peel off the label of a product: "Try not to use your nails as a basis for opening containers or lifting," Edwards says. This can cause already-weak nails to split or bend, which, in turn, can lead to a (not so) clean break.