There's no shame in starting a routine to protect your good looks. Loads of men are stocking their medicine cabinets with potent, age-defying grooming products. “The first obvious signs of aging are the fine lines around the eyes,” says Michael Bruggeman, founder of natural skin care line, Organic Male OM4. Since the skin under your eyes is very thin, it's easily susceptible to the damages of stress, late nights, and hangovers. To stave off dark circles, puffiness, and old-man bags, look for products with natural ingredients like soothing cucumber, inflammation-reducing fennel, and brightening bearberry. Vitamin K is especially great for dark circles, which are technically mini bruises, because it helps regulate coagulation.