For as long as humans have held up a mirror, they’ve been looking for ways to stay youthful longer. Cleopatra took milk baths, and Ponce de León pursued the Fountain of Youth in the New World. Today, many treatments out there claim to be secrets to vitality — but do they really work? One such nutrient that has gained attention for its potential anti-aging benefits is vitamin K. While widely recognized for its role in blood clotting and bone health, recent studies suggest that vitamin K may hold the key to maintaining a youthful appearance.