Learn when to part with your beloved lipstick, mascara and more with these guidelines from Jeanine B. Downie, M.D., a dermatologist in Montclair, New Jersey, and co-author of Beautiful Skin of Color [Harper Collins].
Makeup Brushes-replace every three months, especially if you're using them every day. (Once bristles start to shed, it's a sign to swap brushes.) Also, store them in a cool place. Heat and humidity can cause bristles to fall out prematurely.
Color Cosmetics- There's no harm in using this season's powder-based shadow, blush or bronzer until you see the bottom of the compact-even if that's not until next summer. But replace cream formulas (which you apply with your fingers) every six months.
Eye and Lip Pencils- keep eye pencils six months max: you can hold on to lip pencils about a year. Keep them covered with a a cap and sharpen regularly to remove lingering bacteria.
Mascara-Start a fresh tube every three months. Since mascara gets applied directly to the eye area-and the wand can harbor unwanted germs after prolonged use-be vigilant with this rule.
Lispticks- can be kept about a year, but if they start to smell or the consistency turns chalky, it's time to toss.
Source: Family Circle magazine