You’re exposed to less sunlight
‘Vitamin D and vitamin K levels drop in the winter, and are associated with darker circles under the eyes, giving the appearance of significant aging due to paler, more transparent skin,’ explains Patricia Wexler, MD, New York City dermatologist and founder of Wexler Dermatology. Instead of sneaking into a tanning booth, try applying a tan bronzer to help add youthfulness and color back into pale, tired-looking skin.