When to Throw Out Your Makeup
Tuesday, 07 January 2014 | by Pat's Picks

The Wall Street Journal has advice on how long you should keep your makeup to make sure you’re not spreading germs. Replace mascara and liquid eyeliner every three months. Your lipstick can last up to a year, as long as you clean the top layer with alcohol after any illness. And you’ll want to wash your makeup brushes once a month, using baby shampoo.
SOURCE: Wall Street Journal