Say hello to stronger natural nails with Original Nail Envy - Formulated with wheat protein and calcium 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.