Brittle Nails Treatments 1.0 Causes of brittle nails are many. Anything from iron and zinc deficiency, to the use of harsh detergents, nail polishers and nail polish removers can make them chip and break. Cuticles do provide some protection from all these agents, but they are not enough. Using nail hardening treatments regularly will enhance their appearance and health. They will make them stronger and less prone to damage. See also: Brittle Nails Treatments, brittle nails |