Like HowStuffWorks on Facebook!

5 Common Skin Care Mistakes

Not Removing Your Makeup Before Bedtime

After spending more than a decade as a vaudeville song and dance man, Buddy Ebsen finally landed the role of a lifetime as the Tin Man in The Wizard of Oz. Unfortunately for Buddy, the makeup he was required to wear for the role -- formulated to give him a metallic sheen -- contained aluminum powder. Buddy turned out to be highly allergic to the makeup, which put him in the hospital and cost him his role in the movie [source: Bianco].

While the makeup in your cabinet probably won't land you in the emergency room, it can still harm your skin if you forget to remove it every night. For one thing, makeup can trap dirt and oil, holding it against the skin overnight and clogging pores. Additionally, makeup can contain ingredients that irritate the skin over time and impede your skin's regeneration, which mostly takes place while you sleep. Lastly, removing makeup is the first step toward cleaning your skin, which is vital to maintaining a healthy complexion. Of course, when it comes to cleaning, there can be too much of a good thing. Read on to find out what we mean.