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Smoking and skin: the bill that shows up on your face

Everyone knows smoking harms the lungs. Its effect on your face gets talked about less. We explain what studies of identical twins show, how smoking wears down your skin and what quitting means for your skin.

October 21, 2026 · 4 min read · 5 sources

Smoking and skin: the bill that shows up on your face

A smoker may not notice the changes in his own face in the mirror for years. The change is slow: first the complexion gets a little duller, then the lines at the corners of the eyes deepen and fine wrinkles appear around the lips. The studies that show these changes most clearly are the ones comparing two genetically identical people.

What twins tell us

Identical twins carry the same genes, so the differences between them come largely from lifestyle. In a twin study in the US, the twin who smoked, or had smoked longer, showed more signs of skin aging than their sibling. The bigger the difference in smoking duration, the bigger the difference in apparent age.

Another twin study by plastic surgeons revealed which areas of the face are most affected. In the twins who smoked, under-eye bags, sagging of the lower eyelid, lines above the upper lip and on the lower lip, and lines at the corners of the mouth were more pronounced. In other words, smoking's mark builds up especially around the eyes and mouth.

What set two siblings with the same genes apart was lifestyle; the cost of smoking was written clearly on their faces.

How does smoking wear down your skin?

A review on the effect of tobacco smoke on skin aging explains that in laboratory studies, tobacco smoke extract reduced collagen production, increased production of the enzymes that break collagen down and led to abnormal formation of elastic fibers. Because collagen is the skin's support network, wrinkles and sagging become more noticeable as this network weakens.

Not just wrinkles

A comprehensive review on smoking and the skin explains that smoking has been linked to many conditions, including delayed wound repair, premature aging, some skin cancers, acne, psoriasis and hair loss. For men, hair loss is an important detail: in a study of twins, longer smoking duration was associated with more hair loss at the front of the scalp.

What changes when you quit?

Deep wrinkles that have formed over the years won't disappear completely. But quitting smoking can help increase blood flow and oxygen to the skin, bring color back to your complexion and slow the buildup of new damage. The sooner you quit, the less damage your skin accumulates.

Supporting your skin while you quit

If you notice a wound on your skin that won't heal, a white or red patch on your lip or inside your mouth that doesn't go away, or a mole that changes, see a doctor without delay.

Sources

  1. 01
    Smoking and Skin Aging in Identical Twins

    Doshi DN, Hanneman KK, Cooper KD · Archives of Dermatology · 2007 · doi:10.1001/archderm.143.12.1543

    Reported that the twin who smoked, or had smoked longer, showed more signs of skin aging than their sibling.

  2. 02
    Facial Changes Caused by Smoking: A Comparison between Smoking and Nonsmoking Identical Twins

    Okada HC, Alleyne B, Varghai K, Kinder K, Guyuron B · Plastic and Reconstructive Surgery · 2013 · doi:10.1097/PRS.0b013e3182a4c20a

    Showed that under-eye bags and lines around the lips and mouth were more pronounced in twins who smoked.

  3. 03
    Tobacco smoke causes premature skin aging

    Morita A · Journal of Dermatological Science · 2007 · doi:10.1016/j.jdermsci.2007.06.015

    Reviewed how tobacco smoke reduces collagen production, increases collagen-degrading enzymes and is linked to premature skin aging.

  4. 04
    Smoking and the skin

    Ortiz A, Grando SA · International Journal of Dermatology · 2012 · doi:10.1111/j.1365-4632.2011.05205.x

    Reviewed the links between smoking and many skin conditions, including wound repair, skin aging, acne, psoriasis and hair loss.

  5. 05
    The Contribution of Endogenous and Exogenous Factors to Male Alopecia: A Study of Identical Twins

    Gatherwright J, Liu MT, Amirlak B, Gliniak C, Totonchi A, Guyuron B · Plastic and Reconstructive Surgery · 2013 · doi:10.1097/PRS.0b013e3182865ca9

    Showed in male twins that longer smoking duration was associated with more hair loss at the front of the scalp.