Unilever’s Signal is set to launch a new campaign via Facebook’s Messenger aimed at teaching children to brush their teeth correctly, according to a report published by PR Week.

Little Brush, Big Brush, as the animated series created by R/GA London is known, will be delivered in 21 episodes designed to be viewed on consecutive days. The story can be customized to each child via a chatbot. The campaign will be rolled out worldwide, starting with Indonesia and Vietnam – two of Signal’s fastest growing markets.

“We are really proud of this fantastic piece of personalized communication,” said Anuj Rustagi, Global Brand Director of Signal Pepsodent. “Research has shown that we can help drive behavioural change with 21 episodes of Little Brush, Big Brush evening challenges, and that is something really meaningful.”