Stress Less!

Yes, being overly stressed qualifies as a bad beauty habit -- maybe some of these habits are even the source of your stress. chronic stress can cause hair loss, wrinkles, adult acne, puffy eyes and other unpleasant external side effects (in addition to the emotional and psychological toll that stress already causes).

Falling Asleep With Makeup On

This is probably the number one bad beauty habit on every woman's list. If you don't remove your makeup before bed, products can build up in your pores and cause breakouts.

Overplucking Your Eyebrows

Audrina Patridge is actually committing two beauty sins here - tanning and over-plucking - but we'll save the sin that is tanning for a little later. Just like certain hairstyles flatter certain face shapes, so, too, do certain eyebrow shapes and thicknesses (but never too thin; that just leads to you looking surprised all the time) work best with certain face shapes. Plus, full eyebrows like Jennifer Connelly's are totally in again.

Heat Styling Your Hair Every Day

If you absolutely can't give you hair a rest and go au natural at least one or two days a week, make sure you use a deep conditioning treatment at least once a week to give your moisture-starved follicles some of their essential nutrients back. And before you even go near your hair with a heated tool, be sure to use a thermal protecting spray that will protect the inner core of your hair and stop the heat from doing any permanent damage.

Tanning

We agree that glowing skin is quite enchanting; however, there is absolutely no excuse for continuing to expose yourself to harmful UV rays that can cause melanoma. There have been wonderful advances in the field of self tanning in the past few years, and your friends and family members will be glad to hear you gave up this bad beauty habit.