Detailed answer

Cigarette smoke contains harmful chemicals that damage the skin, leading to sallow complexion. It reduces the blood flow to the skin, depriving it of oxygen and nutrients needed for a healthy glow. The toxins in smoke also increase the production of free radicals, leading to premature aging, uneven skin tone, and dullness. Additionally, smoking weakens collagen and elastin fibers, causing sagging and wrinkles. Quitting smoking and protecting the skin from further smoke exposure can help restore a radiant and healthy complexion.