skin & pollution

Dirty Air = Dirty Skin



Do you know that our largest organ, the human skin, plays the role of a barrier and is also very exposed to aggressive air pollutants?  Thus, living in London means that we are heavily exposed to pollutants that have an effect on our general health and on our skin.

As a matter of fact, this is a concerning and widespread issue as nearly 90% of the world’s population breathes air containing a high level of pollutants (WHO, 2017).  In 2019, air pollution was considered by the World Health Organization to be the biggest environmental health risk to humans. While the level of pollution outdoors is very concerning, we also face heavy pollution indoors.

Indeed, according to a study carried out by the National Air Quality Testing Services, the air inside our very homes is almost three times more polluted than outside. To illustrate, this is due to toxic compounds found, for instance, in cleaning products, home furnishings, and even building materials as well as emissions by some cooking appliances.

Impact on Skin

Alarmingly, air pollution affects many organ systems such as cardiovascular, pulmonary, central nervous, reproductive, and integumentary (skin, hair, nails, and exocrine glands) systems. Moreover, it plays an increasing causation role in our most common skin diseases such as acne, hyperpigmentation, atopic dermatitis, psoriasis, and even premature aging (Araviiskaia et al., 2019).

Furthermore, major air pollutants on the skin include solar ultraviolet radiation (UVR), polycyclic aromatic hydrocarbons (PAHs), particulate matter (PM), volatile organic compounds (VOCs), nitrogen oxides (NOx). Ozone (O3) and also cigarette smoke.

Consequently, when the skin interfaces with the atmosphere, the pollutants gain entrance through the skin surface, the sweat ducts, inhalation, ingestion, and also absorption via the hair follicles. And as a result, pollutants impact our skin by generating destructive free radicals which cause oxidative stress.

Skin disorders associated with pollution

Alterations that disturb the skin barrier function are involved in the development of various skin issues and diseases. The protective ability of the skin can be compromised and problems arise when an abnormal exposure to environmental stressors exceeds the skin’s normal defensive potential (Valacchi et al., 2012). Here below, you will find some of the skin disorders associated with pollution:

1) Photoaging

Exposure to pollutants can lead to premature aging and many studies expose a direct link between airborne pollutant exposure and the occurrence of prominent skin aging signs especially pigment spots, as well as wrinkles. Additionally, there is evidence that ozone as a strong oxidative agent is capable of affecting the integrity of the skin. Furthermore, some epidemiological studies discovered a direct link between airborne particulate matter (PM) exposure and the occurrence of prominent skin aging signs. Other studies suggest skin aging-inducing pathways might be through polycyclic aromatic hydrocarbons (PAHs).

2) Acne

There is a strong body of evidence that links pollution to inflammatory acne (Krutmann & al., 2017). Particularly, living in a polluted area and big cities exposes us to free radicals which causes inflammation in the skin. Our body’s main function is to maintain homeostasis by disposing of toxins from main channels of elimination such as sweating, the urinary tract, colon, and lungs. However, if the body is unable to effectively eliminate toxins then it could lead to adverse reactions such as acne, sensitivity, or rashes on the skin. In fact, we are witnessing an explosion of acne in adults.

3) Atopic dermatitis/eczema

Atopic dermatitis (AD) is a common, heterogeneous, chronic‐intermittent, eczematous skin disorder that starts at infancy or early childhood and persists in adult life.

There is evidence-based medicine showing that outdoor air pollution is related to the exacerbation of atopic diseases, and eczema.

4) Lentigines

Lentigines are small brown macules located typically on the face, hands, and chest. Variously called liver spots, can be considered a sign of premature aging.

5) Melasma

Melasma is a benign light- to dark-brown hyperpigmentation mostly over the face but at times also involving the neck, chest, and shoulders. For instance, Particle Matters (PM) increases the number of reactive oxygen species (ROS) that trigger the increase of metalloproteinases and lead to aging, which includes skin hyperpigmentation.

6) Skin barrier dysfunction

Skin barrier dysfunction can be caused by pollutants. As a result, abnormal skin barrier integrity causes increased skin inflammation and issues.

7) Psoriasis

It is known that pollution negatively affects psoriasis and environmental pollutant exposure may compromise immunity and can predispose to worsening of psoriasis.

In particular, Cadmium, found in battery and television manufacturing and the aircraft industry, is one of the air pollutants that affect the pathogenesis of psoriasis (Kamiya et al., 2019).

8) Skin cancer

Additionally, pollution is also associated with an increased risk for skin cancer (Baudouin et al., 2002). UV radiation is one of the main factors responsible for most skin cancers. A recent study states that “Strong evidence supports the hypothesis that factors related to climate change (…) ambient air pollution, have likely contributed to the increasing incidence of cutaneous malignancy globally”. (Parker, 2020)

Take care of your skin

As we have seen, we are exposed to so many pollutants outdoors and indoors. Therefore, taking care of your skin such as facials is not pampering but a necessity. Moreover, pollutants increase the risk of aging and that is why we offer treatments that can help cleanse, improve pigmentation, texture as well as help create collagen and elasticity.

Find out more about the treatments for Skin we offer or book a free consultation at Nar London, Harley Street.



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