Wella Professionals has given the perm a modern makeover with Wella Wave. The formula conditions during processing so hair maintains its strength and elasticity, and minimises damage and breakage on fine hair. The process takes about three hours, and there’s no washing for two days post-treatment (you can tie it back). Some old-school elements remain: the solution emits a faintly unpleasant odour, and the process still utilises rollers, but the results are customisable – from tight curls to loose bends – and should last anywhere from four to 12 weeks. At home, it was suggested we avoid using a towel on damp hair and instead hand-wring and let it air-dry, using a diffuser only if necessary. It made our natural waves more uniform, smooth and wash-and-go – exactly what we crave at this time of year.