Many people don't have the time or budget for continuous nail salon visits. And even these, over time, can wreak havoc on nail health, with dry, brittle nails often the result of long-term use of fake talons. OPI, a well-established nail product brand, sells a Repair Mode Bond Building Nail Serum that penetrates the nail surface to build new bonds from within. OPI says it's the first-ever bond-building nail serum with Patented Ulti-Plex Technology. Typically £29, using the code 'treat20'