No one wants to head outdoors looking old and haggard thanks to a dull, sallow complexion. Pollution, smoking, dehydration, stress, fatigue, rich diet, UV rays, hormones, lack of exercise... Lots of things can cause dull skin, but even if we can't tackle them one by one, there's one sure-fire way to get back your glow. The solution? A face scrub! This is step number one for a flawless complexion, as it boosts our circulation and gets rid of skin cells that clog pores and suffocate our skin. Apply a fine grain face scrub once or twice a week and massage it on using wide circular movements. During colder months, you can also apply brightening, fruit acid-based creams and serums that will exfoliate your skin and remove dead cells. Although if you have sensitive skin, better give this one a miss!