Lifebuoy: Hackwashing

Over 60% of Indians wash their hands only with water and no soap at all. This behavior causes spread of fatal diseases. Now, imagine this unhealthy habit during the world's largest human gathering: Kumbh Mela. Instead od trying to educate millions on using soap, we hijacked what they're already doing: Hackwashing is a wearable ink made of Lifebuoy formula, which turns into antibacterial soap on coming in contact with water. So just by stamping people's hands, we ensured they also use germ-killing soap every time they rinse their hands with water.