OPI BOND-AID is a best sellingpH Balancing Agent with a unique formula that equalizes the pH of nails for optimal application and longer wear. This nail bond can be used with a number of products, including acrylics, tips, wraps, glue and polish. It brings the surface of the natural nail to the proper pH for optimum adhesion of gels, acrylics, nail adhesives, tips, wraps, base coats and nail lacquer