NOTE: The next new Mouse Print* story will be published on January 2nd.
Shrinkflation’s evil twin is “skimpflation.” That is when a manufacturer reformulates a product using less of the expensive components and sometimes substitutes less expensive ingredients. In other words, some products actually get watered down.
Store Brand Cough Syrup |
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Discovering that a product’s recipe has changed is very difficult to detect. But regular reader Mark D. spotted a great example. Shopping at his local Kroger store he discovered that their store brand cough syrup had been diluted, now requiring you to take twice as much per dose.

We found that Kroger was not alone in doing this because various other chains are also changing the formula of their own brand of cough syrup.
Here are before and after CVS’ versions of Tussin DM (a knockoff of Robitussin):

Only that tiny notation on the front panel that says “see new dosing” gives a clue to a change in the product. When checking the drug facts, comparing the ingredients in the old and the new product, the clever ploy is revealed.
*MOUSE PRINT:

Now there is only half the amount of active ingredients in each bottle. Put another way, to get the same amount of the two active ingredients per dose, you now have to consume twice as much cough syrup – 20 ml per dose instead of the old 10 ml.

We asked CVS why it made the change, and a spokesperson responded in relevant part:
In 2021, when the national brand equivalent made changes to their formulation, including changes to flavor, a change in dosing, and removal of high fructose corn syrup, CVS also updated its formulation of CVS Health Brand Tussin-DM.
Best we can tell changes like this are occurring with other store brands including Walgreens. If there is any good news, it seems to have taken the store brands four or five years to realize that Robitussin changed its dosing around 2017. The spokesperson for Haleon, the maker of Robitussin, when asked why the formulation changed said:
Over the years the brand has launched new, innovative products and evolved to meet changing consumer needs. This includes in 2015 and thereafter, when the brand reformulated its Robitussin DM products to improve factors such as taste to allow for a better consumer experience.
None of the store brands is promoting the fact that with less medicine in every dose, the product is better tasting. But, they are benefiting financially because the product now gets used up twice as fast.
If you spot an instance where a product has been watered-down or cheaper ingredients have replaced more expensive ones, please let us know. Just send an email to Edgar (at symbol) ConsumerWorld.org . Try to include “before” and “after” pictures.