How often should you wash your hair?

How often should you wash your hair? It’s one of the most searched for questions on Google, but how would you answer it? Tina Daheley, who has recently gone from washing her hair once a day to once a week, consults an expert. Eleanore Richardson is a trained Trichologist and specialises in all things hair and scalp. She explains why we wash our hair, and why the answer to “How often?” can depend on a multitude of factors, including how old you are.