Unilever's Lifebuoy brand needed a more engaging and scalable way to teach children correct handwashing habits across many countries, languages, and local contexts so hygiene education would drive stronger behaviour change.
Reported impact
In early testing, the personalised experience substantially improved awareness of key handwashing moments, increased correct technique, and raised children's interest in learning more, while giving Lifebuoy a scalable and cost-effective education tool that also supports brand equity.
Unilever built Lifebuoy's AI-Teacher Hippo as a personalised hygiene education experience for children and used Microsoft as the primary external AI platform provider. The experience takes child-specific inputs such as name, favourite colours, favourite foods, and location, then uses Azure Open Enterprise APIs to generate AI-driven content in multiple languages for each child. Lifebuoy combined that generation layer with Aircards' AI and AR capabilities so the lessons could become interactive rather than static. The resulting experience is served on smartphones or tablets and lets children choose formats such as a handwashing song, game, or digital colouring book. Unilever says the system was designed for use across 11 markets and five languages. The source does not identify a separate storage product or database, but it clearly describes the ingestion of personalisation inputs, AI content generation, AR-enhanced delivery, and school/community deployment at scale.
A child accesses AI-Teacher Hippo on a smartphone or tablet, where the experience uses inputs such as the child's name, favourite colours, favourite foods, and location. Azure Open Enterprise APIs generate the personalised multilingual content, AR elements make the lesson interactive, and the finished experience is delivered as songs, games, or a digital colouring book for use in schools and communities.
"100% of children taking part in our tests expressed a desire to learn more about handwashing with soap at school after experiencing AI-Teacher Hippo."
"Aircards brought their expertise in AI and AR to create real-world interactions, making hygiene education captivating for kids."
"Children are empowered to choose their own learning experience, from a handwashing song or game to a digital colouring book."
"Lifebuoy's AI-Teacher Hippo tool creates a personalised handwashing education experience for every child."
"Microsoft provided the technical foundation with Azure Open Enterprise APIs, helping us generate personalised, AI-driven content in multiple languages for each child."
"That was very apparent when we tested the AI-Teacher Hippo tool with children and saw an 8x improvement in their awareness of critical handwashing occasions"
"This is the first time we've used AI to create a personalised educational tool for children, and the first time we've integrated these experiences into multiple languages at this scale."
"We found that 28% more children used a correct handwashing technique"
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