Laundry additive brand Vanish used communications to demonstrate how familiar, well-cared-for clothing matters especially to autistic people and to raise awareness of under-diagnosis and under-representation of girls with autism. In partnership with the charity Ambitious about Autism, Vanish won Channel 4’s Diversity in Advertising Awards, using the prize to launch emotional advertising showing the importance of favourite clothing in the life of an autistic teenage girl and her family, amplified with other content and fundraising initiatives. Evidence of effectiveness includes subsequent shifts in perceptions about both autism and Vanish, immediate commercial uplifts, and positive feedback from autism communities.