Does smoking affect your hair?

Many men know that smoking is bad for the heart and lungs, but its effect on your hair is far less well known. Yet science shows a clear link: smokers are significantly more likely to experience hair loss than non-smokers, and for those with a genetic predisposition, the risk is further increased. In this blog, you can read how smoking affects your hair follicles, what the research says and what you can do to limit further damage.

How does smoking affect your hair follicles?

Hair follicles depend on a constant supply of oxygen and nutrients via the blood vessels in the scalp. Nicotine and the other substances in tobacco smoke cause these blood vessels to constrict, reducing blood flow. At the same time, tobacco smoke causes oxidative stress: free radicals that damage cells in and around the hair follicle. Smoking also has an inflammatory effect on the scalp tissue.

The result is that hair follicles wear out more quickly and become more susceptible to hormonal damage. Research shows that this directly disrupts the hair cycle: the growth phase (anagen) is shortened, cell renewal slows down and more follicles enter the resting phase prematurely. Smoking does not cause immediate baldness, but it undermines the natural rhythm of hair growth in a way that becomes noticeable over time.

Does smoking increase the risk of hair loss?

Yes. A 2024 meta-analysis in the Journal of Cosmetic Dermatology analysed data from 4,462 men across eight observational studies. Smokers were found to be 82% more likely to develop androgenetic alopecia than men who had never smoked. Among men who smoked more than ten cigarettes a day, that risk was even higher. Furthermore, the likelihood of existing hair loss progressing from a mild to a more severe stage was 27% higher in men who had ever smoked.

A supplementary systematic review in Skin Appendage Disorders confirmed the same findings across 32 studies. Anyone who already has a genetic predisposition to hair loss increases that risk by smoking.

What can you do if you want to stop further damage?

After giving up smoking, blood flow to the scalp gradually improves and oxidative stress decreases. Hair follicles that are weakened but not completely dead may start to function better again. Full recovery is not guaranteed and depends on how far the hair loss has progressed and whether there is a genetic component involved, but quitting slows further deterioration and improves the conditions for new growth.

Lifestyle supports that recovery. Proteins are the building blocks of hair; iron, vitamin C and zinc play a role in cell renewal around the hair follicle. Chronic stress and sleep deprivation increase cortisol levels, which negatively affects the hair growth cycle. Getting enough sleep and reducing stress are therefore key factors, not mere side issues.

Can treatments help with hair loss?

If hair loss also has a hereditary or hormonal cause, which is the case for most men, lifestyle changes alone are insufficient. Finasteride and minoxidil are the only two treatments approved by the European Medicines Agency (EMA) for the treatment of androgenetic alopecia in men.

Finasteride inhibits the production of DHT, the hormone that affects hair follicles in those with a genetic predisposition. Minoxidil improves blood flow to the scalp and prolongs the hair’s growth phase. Both treatments work best in combination and require consistent, long-term use. A doctor will assess which treatment or combination is suitable for your situation.

How does Fellos help with hair loss?

At Fellos, a Dutch BIG-registered doctor assesses your situation via an online consultation and draws up a personalised treatment plan. If treatment is appropriate, the medication is discreetly delivered to your home. What you can expect from the treatment depends on the condition of your hair follicles, how long the hair loss has been ongoing, and how consistently you stick to the treatment. You will discuss these expectations with the doctor.

Smoking and hair loss: the link is clear

Smoking increases the risk of hair loss and accelerates its progression. Quitting helps, and for men where a hereditary factor is also involved, proven treatments are available.

Start your consultation with Fellos and discover what’s possible for your hair.

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