A 62-year-old woman presented with diffuse alopecia areata affecting more than 50% of her scalp hairs with sparing of non-pigmented hairs. She was treated with a 2-month course of oral prednisolone and extensive hair regrowth occurred. The new hairs were completely non-pigmented. As a result, the patient's hair colour is now strikingly and completely white, with a normal hair density. This response has been sustained for 6 months after cessation of treatment.