Did you know that eyelashes naturally have bacteria on them, and as soon as you use a makeup brush on the eyelash or eyelid, the brush is contaminated? With the constant use of the brush, a buildup of bacteria will occur in the container itself, which increases your chances of eye infection or an allergic reaction.

What should you consider doing? Even though most cosmetics have long shelf lives, experts suggest that you keep track of the purchase date, especially mascara, eyeliners and eye shadow. To reduce your risk of eye infection, change these three cosmetics every three to four months. In addition, avoid sharing cosmetics with other people.