How To Tell Mascara Is Old. To avoid infection you should regularly replace anything that comes in contact with your eyes Dr. Unopened and properly stored cosmetic items typically last from 5 to 8 years.
Debra Jaliman a New York City dermatologist told Good Housekeeping. Unopened and properly stored cosmetic items typically last from 5 to 8 years. You may have heard to add water to help with the clumps but dont.
After that some products start to deteriorate and lose their effectiveness.
Mascara and eyeliner can develop nasty bacteria that could cause eye irritation or an infection. Mascara and eyeliner can develop nasty bacteria that could cause eye irritation or an infection. In more serious cases it may cause styes and even conjunctivitis more commonly known as pink eye. Mascara can also become dry and flaky.