In collaboration with renowned behavioral scientist Richard Shotton, Purina explored why some shelter cats are consistently overlooked. The answer lies in the Halo Effect — a cognitive bias where we let one visible trait, like physical appearance, shape our overall judgement.
In the context of adoption, this means cats that appear healthier are also subconsciously perceived as more sociable, more playful, and ultimately more “adoptable”. Meanwhile, cats that show signs of a tougher life — dull coats or tired eyes — are unfairly judged across every dimension, regardless of their true personality. With this insight, we set out to challenge that bias.
Working with shelters, we fed cats Purina ONE for three weeks and documented their transformation. As their coats became shinier, their eyes brighter and their overall health improved, so did the way people perceived them. These real transformations became the center of an immersive experience, where visitors encountered the same cats before and after, confronting their own first impressions in real time.
The results:
- 56% increase in adoption interest
- 81% of people reconsidered the way they look at shelter cats
THE UNADOPTABLES turned a simple product truth into a powerful behavioral shift; showing that when health becomes visible, perception changes, and so do outcomes.
