OPI’s new serum claims to repair your broken bonds, and I’ve seen an undeniable reduction in breakageIn January, I decided to take a break from gel nails, partly to test alternatives for a future column. It’s no exaggeration to say that over the next month at least one nail broke every single day. My long, strong natural nails owed everything to builder gel, it turned out, and on their own were as weak as street party lemon squash. Whether this is the effect of hormonal changes or years under the UV lamp, my nails have been withered by time, and before I could even look for gel alternatives I needed to find a fix.I should say that my frustrations with nail-strengthening products are numerous and, ultimately, inhibit regular use – which is essential for results. I don’t see the logic in products that dry hard, to be layered one coat atop another, forming a thick, lacquered carapace. How are the upper layers of such products reaching the nail itself and having...