20 Mistakes That Could Be Causing Your Acne
2. Dirty Brushes
Putting makeup on your face with oily, dirty brushes means buffing that oil and dirt into your skin. Yuck!
Take the time to clean your brushes at least once a week to rinse away all the gunk from your face and makeup. Even if your face is clean when applying makeup, your brushes can still accumulate oil, dirt, and bacteria.
To clean your brushes, use warm water and a gentle shampoo and clean your brushes gently with your hands until the water runs clear. Set them on a paper towel and let them dry overnight.