When you clean your brushes, you’re not just getting rid of old makeup, but you’re also ridding the brush of old makeup, dirt, oil, dead skin, and bacteria. You (hopefully) wash your face every day. But if you’re faithfully cleansing and moisturizing only to follow up with a sticky, dusty powder brush, you’re painting a week’s worth of dirt and grime right back on your face.
Why dirty makeup brushes and acne are connected
Every time you use a dirty makeup brush, acne gets a chance to set up shop. Unwashed tools breed bacteria and trap dirt. Each time you “put on your face” with a dirty brush, you’re putting all the old makeup and little microbes that live on your skin back where they don’t belong.This can also trigger your skin’s defense mechanisms, which will try to fight off bacterial overload. That can clog your pores and oil glands.
if you don’t know dirty makeup brushes are the cause of your breakouts, you’ll just continue the cycle perpetually. Over time, that can lead to infections.