March 2007 in “International Journal of Cosmetic Science” This study found that Indian and Chinese black hair, with higher melanin content, resist photochemical degradation better than European hair, which has lower melanin levels, when exposed to dry, hot climates.
3 citations
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January 2002 in “Springer eBooks” This study found that using cationic and non-ionic polymers during alkaline hair relaxer treatments may help strengthen hair and control swelling, potentially reducing damage.
October 2023 in “Arab Gulf journal of scientific research” This study found that adding Cinnamomum zeylanicum bark extract to a powder shampoo formulation significantly improved antioxidant activity without affecting its cleansing ability, although its clinical effectiveness remains to be tested.
This review found that exposure to pollutants like PM, NOx, and PAHs is linked to various skin and hair disorders, indicating a need for cosmetics with natural adsorbents to reduce pollutant effects, achieving 30-55% removal efficiency.
5 citations
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November 2021 in “History & Philosophy of the Life Sciences” This article explores how narratives around racial and ethnic minorities versus fat individuals during the Covid-19 pandemic influenced the framing of these groups as "at-risk," with disparities in blame and responsibility linked to structural racism and anti-obesity rhetoric.