Natural preservatives like salt or sugar can be harmful to your health when eaten in excess. Artificial preservatives often use synthetic chemicals that are deemed safe by the FDA. The bigger ...

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 ...

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 ...