Known cases / Oral Care / Listerine
Did Listerine Fresh Burst mouthwash shrink?
600 → 500 ml −16.7%Size Facts
Before600 ml
After
500 ml
Hidden unit-price rise at same price+20.0%
When2023
CountryUnited Kingdom
Evidenceconsumer-group / news investigation
Confidencehigh
Source: https://www.which.co.uk/news/article/honey-they-shrunk-the-groceries-which-reveals-more-victims-of-shrinkflation-and-ski (which.co.uk). Source fetched 2026-10-14. Check the math in the calculator.
What the source says
“gredients – and we’ve been inundated. First up there’s Listerine, which is bound to leave a bad taste in your mouth after its Fresh Burst mouthwash shrunk from 600ml to 500ml. At Tesco it also went up in price by 52p – meaning shoppers paid 21% more for 17% less. When you work it out per 100ml”
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