A preservative-free flu shot is a type of flu vaccine that does not contain the antimicrobial agent known as thimerosal. Thimerosal, a mercury-based compound, is an ingredient that's used in some ...

Preservatives are added to multidose medication bottles to inhibit microbial contamination. An assortment of different preservative formulations has been used in ophthalmic medicines and many of ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...

By the late 19th century, it would become less putrid, as manufacturers added chemical preservatives to slow decomposition in the bottle. But the real change—the invention of modern ketchup ...

Polyquad ® is a detergent-type preservative derived from BAK. Polyquad was formulated in the mid 1980s by Alcon as a preservative for contact lens storage solutions. It was developed because ...

Preservatives inhibit or kill microorganisms, preventing spoilage and extending the shelf life of cosmetics. Ideally, preservatives should be effective against a wide range of microorganisms ...