3. You Should Toss Mascara After Three Months—No Exceptions

The three-month rule for mascara replacement is a widely accepted guideline to prevent eye infections caused by bacterial buildup. However, factors such as the effectiveness of preservatives, how often you use the product, and your application habits can influence mascara’s shelf life.
For example, pumping the wand introduces air and bacteria, accelerating spoilage. The FDA recommends discarding mascara at the first sign of odor, color change, or irritation, even if it’s before three months. Ultimately, practicing good hygiene and monitoring your product’s condition are key to keeping your eyes safe while using mascara.