Beauty: Season of the switch

Time was, one hairdryer served the entire household. It was loud, hot and prone to combustion, but we demanded little more than a vague blast of warm air. And we held on to our half-functioning hairdryers for years on end, spending our disposable on more important things.

One thing is true, however: the beauty world abhors a vacuum. And, fittingly, it is a vacuum maker that has filled the gap – we now ...