Cigarette smoking is the major factor that can be attributed to dark lips in men. Nicotine found in cigarettes is the major culprit that turns the natural color of the lips to dark. The blood vessels are hardened leading to decreased flow of blood to the lips area and hence it turns black. At times the black color can also be brought about by the dead skin over the lips. Home remedies for dark lips in men Honey Take a small amount of honey and apply it on your lips.…