Since the current coronavirus pandemic began, scientists have been looking for ways to protect against infection. Now, a group of Spanish researchers has concluded that a certain type of mouthwash, CPC, is effective in this regard, as detailed in an article published in the Journal of Oral Microbiology.

What is CPC?

CPC stands for cetylpyridinium chloride, a chemical used in a number of mouthwashes, toothpastes, lozenges and upper respiratory sprays, often sold over-the-counter.

It has antiseptic properties and is especially effective against bacteria such as those that make up dental plaque, so it also has positive effects in preventing gingivitis and halitosis.

Its molecular formula is C₂₁H₃₈NCl and it is solid at room temperature. It should be noted, on the other hand, that it is toxic and can have side effects, such as causing brown stains to appear on the surface of the teeth (which, however, are easily removed by the dentist).

Which mouthwashes contain CPC?

Many brands sell mouthwashes that contain CPC, but since this effect was not known until now, it has not been advertised. That is why it is necessary either to look on the internet for the leaflet of the rinse and check one by one which one has it and we like it, or to consult with the pharmacist who will surely have already received the same query several times since this news began to circulate.

Although we have verified that some products of prestigious brands already contain this component, we are not going to point them out here to leave you free to choose.


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