One minute you are wearing low-cut dresses and shirts with confidence. Next thing you know you’re camouflaging your chest with turtleneck sweaters and layers of necklaces. Around the age of 40 is normally when a woman’s décolletage begins to show her age. Signs of aging include skin sagging and thinning or “crepe-like” appearance.

Even if you get plenty of sleep, and haven’t had a drink in years, you can still have dark circles under your eyes. And while it’s true that fatigue makes your skin dull, the biggest contributing factors to dark under-eye circles are genetics and heredity.