Humidity and Acne: How Sweat Mixes with Pollution to Clog Pores Introduction Acne outbreaks during summer are a common struggle for many, especially in Delhi.
The period from April to September brings not only intense heat but also a surge in acne, often resistant to typical cleansers. The root cause lies in the interplay of a humid climate, sweat, and the city’s severe air pollution.
Humidity and Its Impact on Skin Human skin hosts two to four million sweat glands that become particularly active during humid months. Sweat itself, composed mainly of salt and water, is harmless.
However, in high humidity, sweat fails to evaporate quickly, forming a thin oily layer when mixed with sebum produced by the body. This oily-salty film compromises the skin’s outer layer, known as the stratum corneum, and blocks its openings.
Dead skin cells, which normally shed, get trapped, clogging hair follicles and leading to acne manifestations like blackheads and whiteheads. Pollution’s Role in Worsening Acne Delhi’s air quality exacerbates acne issues.
The city ranks among the most polluted globally, with air saturated by PM2.5 particles, vehicle exhaust, construction dust, and industrial emissions. These microscopic pollutants are often smaller than skin pore openings, allowing them to penetrate deeply.
Once pollutants settle on the skin, they mix with sebum and infiltrate follicles, carrying harmful substances like polycyclic aromatic hydrocarbons (PAHs) and heavy metals.
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