Treat yourself to professional nail care at home, as you are used to in the salon. Nails that are often worked on become thin over time and tend to break. It is therefore advisable to use a nail hardener regularly. OPI has developed Nail Envy for this purpose. Nail Envy from OPI contains valuable wheat proteins and large amounts of calcium, which penetrate deep into the nail substance and strengthen it. This gives your nails new strength and makes them more resistant to external influences. But the nail hardener doesn't just provide intensive nail care. It also gives your nails a delicate and natural-looking nude colour.Longer, harder and stronger nails With regular use of the Nail Envy nail hardener from OPI, you can expect your nails to become significantly more resistant and harder and thus also achieve greater length. Use it for continuous nail care and as preparation for a nail design with gel or acrylic to make damaged nails stronger. Thanks to the fine brush integrated in the lid, the nail hardener can be applied easily and precisely. The product is also characterised by its fast and even drying formulation.