Anti Zombie Perfume

At the end of DR1 Isabela makes a perfume that smells bad to the zombies so they don’t attack them when they are using the tunnel to escape.

So why is that Perfume (to my knowledge) the only time we ever see it in Dead Rising Universe.

You would think to prepare for future outbreaks normal citizens could buy it avoid zombies and the Government could produce it for soldiers to use for clean up operations for future zombie outbreaks.

Would love some thoughts and opinions