(HealthDayNews) -- You've spent a lot of money on that drawer of cosmetics, and are loathe to throw any away.
But using old cosmetics can leave you open to infection and disease, according to the U.S. Food and Drug Administration.
Cosmetics applied near the eyes, in particular, should be thrown away regularly. Repeated microbial exposure during use increases the risk of eye infections.
Some industry experts recommend replacing mascara and other eye cosmetics three months after purchase, especially those with few or no preservatives. Also, don't use saliva to moisten dry mascara, because that will introduce bacteria.