The maker of Poligrip today announced it will stop using zinc in three of its popular denture creams due to potential health risks associated with the ingredient, reports The New York Times. GlaxoSmithKline will stop making and selling its Super Poligrip Original, Ultra Fresh and Extra Care products while it develops a zinc-free reformulation, according to the story.
In a statement, Glaxo calls the move voluntary and says the products are safe to use as directed. However, the company says it is taking the action “because we have become aware of potential health problems associated with the long-term excessive use of our zinc-containing denture adhesive products.”
Chronic and excessive use of denture adhesive creams have been linked by researchers to a condition called hyperzincuria, or zinc poisoning, which can lead to more serious and permanently disabling injuries including copper depletion (hypocupremia), nerve damage and even death.
The Times writes that Glaxo faces a number of lawsuits alleging nerve damage and other injuries from “high levels of zinc intake from the products.”