Here in the United States, women love mascara.  We use it every day. In fact, studies show that women apply mascara nine times a week.  That's more than once a day.  And, it's the one makeup we just can't live without.  It's very important to us, but most of us don't know how to care for our mascara.  We don't know when to throw these little beauties out.

Why do I need to throw out my mascara tube?

This is not actually a question I get that often from my patients.  But, it's one that I should get, because not many of us women know the answer.  Mascara, just like a jug of milk or a loaf of bread, has a shelf life. There are preservatives in it to keep it fresh, but they only last so long.

Mascara is applied to our eyelashes, and then the wand is put right back into the tube.  We do thi...