Best for roots

When I don’t need a full-on overhaul, but just a quick fix at the roots,

L’oréal Magic Retouch Permanent Root Concealer, £9.99, is my go-to. The nifty brush makes targeted application along the parting and hairline incredibly easy, mess-free and pretty foolproof. It really does just take 10 minutes, and the grey coverage is brilliant. Rhiannon