Nothing kills the mood quicker than B.O. "Men sweat more as they have larger glands," Gunilla Eisenberg, founder of Skin Alchemy, says. "When it mixes with bacteria on the body it makes for a smell. Introducing a wide variety of scented products into their lives is a great way to neutralize the scent that comes from stress at work, going on a date, or working out." But staying fresh involves more than just hitting the (cologne) bottle. From natural oils to sage-scented shampoos, here's all you need to know for de-stinking in style.