As I peered into the mirror I couldn’t help but note the dark circles under my eyes – the result of a bad night’s sleep.
But it wasn’t just me who’d spotted them. The mirror had noticed too.
A graph appeared on the glass to tell me that they looked five per cent worse than they did yesterday.
It might sound like a scene from a science-fiction film but it’s not.
I was trying out the HiMirror Mini, a high-tech smart mirror that claims to analyse your skin, points out problem areas and recommends products to alleviate them.
Here's my report for the Daily Express.