Weak, damaged nails are no match for OPI Nail Envy! Helps prevent snaps and splits. Get invisible protection with this formula made for dry & brittle nails. Formulated with antioxidant Vitamin E & Vitamin C to resist peeling, cracking, and splitting. These natural ingredients make it one of the healthiest ways to strengthen weak nails. OPI is the most preferred brand in the industry and this product is simply another great addition to an already outstanding brand. This product should be used by itself for best results. Application is as simple as applying any other nail product and should be done every other day. The improvements that will be seen while using this product are layers of protection, improved nail growth and overall stronger nails.