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Glossary Pollution

introduction of harmful substances into the environment

Pollution refers to the introduction of harmful substances or contaminants into the environment, which can negatively impact air, water, and soil quality. These pollutants can come from various sources, including industrial activities, vehicle emissions, and agricultural practices, and can lead to health issues such as respiratory problems and skin conditions, including exacerbating hair loss and alopecia due to the presence of toxins and irritants.

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Research

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research Human pollution exposure correlates with accelerated ultrastructural degradation of hair fibers

23 citations , August 2019 in “Proceedings of the National Academy of Sciences of the United States of America”

Pollution exposure speeds up hair damage.

research Measuring oxidative damage to human hair from solar radiation and pollution: A critical review

May 2026 in “Journal of Photochemistry and Photobiology”

This review found that solar radiation, pollution, and trace metals cause significant damage to human hair, with factors like UVB radiation primarily affecting light-colored and bleached hair; most data were derived from in vitro and ex vivo simulations.

research Hair loss due to pollution, micro metabolic dysfunction, epigenetics and role of nutrients

September 2024 in “Brazilian Journal of Hair Health”

This study found that four months of oral nutrient supplements improved hair density by 16-21% and caliber by 18-22% in men and women with pollution-related hair loss, addressing oxidative damage without using finasteride, antiandrogens, or minoxidil.

research 1395 Impact of urban pollution on top of chronic sun-exposure on skin ageing in Chinese women

April 2023 in “Journal of Investigative Dermatology”

This study reported that urban pollution accelerates facial wrinkle development and increases pigmentation severity in Chinese women over 30, whereas UV exposure affects these signs from age 20. After 45, pollution becomes a key contributor to skin aging.

research 615 Evaluation of a combination of botanical extracts designed to protect hair and scalp from air pollutants: in vitro and clinical studies

September 2019 in “Journal of Investigative Dermatology”

This study found that a combination of botanical extracts from Pisum sativum and Salvia hispanica reduced oxidative damage, re-balanced scalp oiliness, and improved scalp hydration and barrier function after pollution exposure.

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Community Join

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community What do you think is the reason why many men are starting to lose their hair at a younger age? Mainly DUPA

in Research/Science 1 year ago

Men losing hair at a younger age, with theories including lifestyle factors like diet, pollution, and technology use. Treatments mentioned include Minoxidil and finasteride.

community 2 years on fin - switching to dut and treating SD

44 upvotes 3 months ago

The user plans to switch from finasteride to dutasteride for hair loss and is treating seborrheic dermatitis with Nizoral and Stanhome Balance shampoos. They are considering trying Vichy Psolution shampoo and Ciclopirox, and are dealing with challenges due to Vietnam's humidity.

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