Best permanent at-home hair color kits

Top pick: L'Oréal Paris Superior Preference — a permanent kit with 100% grey coverage, a wide shade range and colour that holds for about nine weeks, which is what most people want from a box dye.

Who the others suit:

• Clairol Nice 'N Easy — the classic all-rounder with the biggest shade range; good if you're matching an existing colour.
• Revlon ColorSilk — the gentlest budget choice for a first time at home.
• L'Oréal Magic Root Rescue — 10-minute touch-ups between full colours, not a whole-head job.
• Naturtint — plant-based formula for sensitive scalps.
• Wella Color Charm — pro-style liquid colour if you're comfortable mixing.
• IGK kits — fashion shades and shine for coloured or curly hair.

Skip single-bottle pro colours if you want a complete kit with gloves and developer.