BEST FOR DULL HAIR

Handmade in England, Grüum Har Nourishing Shampoo Bar, £8, beautybay.com, is enriched with healing, nourishing coconut oil, and smells good enough to eat – but please don’t try that. It also lathers up a treat, working its way into a rich and creamy foam that leaves hair impressively shiny and silky. One bar is equivalent to two bottles of shampoo and lasts up to 60 washes, so it’s a great-value choice, too.