An influencer says the secret to her luscious locks is only washing it once a month. Sarah Hutchinson, 27, used to wash her hair every two days but noticed it was leaving her tresses dull, dry and unable to grow quickly. Two years ago she started to wean herself off her regular washing routine after a hairdresser said washing it less could improve the condition of her locks. She noticed within just a couple of weeks that her blonde hair was softer and shinier - and has never looked back. The personal trainer from Blackpool, Lancashire, now goes up to two months without washing her hair - instead, she simply uses dry shampoo daily. She said she constantly gets compliments from people who are shocked by her hair routine and claims washing her hair less has helped it grow faster and allowed it to produce more oil as a way to hydrate her scalp.