You clean your face every night, but how regularly do you clean your make-up brushes? Dermatologist Ellen Marmur, MD explains why you cleaning your beauty tools regularly will help improve the look and feel of your skin.

Watch more 30 Days of Beauty tips. 


Want to know how to look marvelous without splurging so much? Dr. Oz invites three beauty experts to share the smartest ways to save money while looking fabulous starting from your hair and makeup tools to the beauty products you use.