Dull, gray hues are a tell-tale sign of dead skin cells that have accumulated on the upper dermal layers. Leaving them on your face is one of the most aging things you can do because they hide the brighter, younger skin beneath. Exfoliation is key, but it's important not to go overboard; using heavy, grainy scrubs too often can do more harm than good. Using a harsh scrub can create micro-tears that leave your complexion red, sensitive and inflamed. It also thins the skin, which enhances signs of aging, try a lighter exfoliater with the right ingredients instead.
Dehydrated skin exacerbates visible signs of aging: from wrinkles and fine lines to pigmentation. Get plenty of moisture to those deeper layers, as there's nothing more youthful and vibrant than plump, dewy skin. Don't just reach for your regular cream, though, you need a product designed to rejuvenate tired skin. I recommend the REN Glycolatic Radiance Renewal Mask.