September 2025 in “Cosmetics” NMN supplements may improve hair quality and appearance in middle-aged women.
13 citations
,
June 2020 in “International Journal of Molecular Sciences” HNG helps hair grow by keeping hair in the growth phase longer.
1 citations
,
December 2021 in “The Open Dermatology Journal” Herbal hair oil with certain herbs can improve hair growth.
16 citations
,
January 2010 in “Springer eBooks” June 2023 in “Zenodo (CERN European Organization for Nuclear Research)” August 2024 in “Research Journal of Health Sciences” Normal scalp and hair characteristics in Black Africans include white dots and a honeycomb pattern.
September 2001 in “Emergency Medicine News” Hair testing is effective for detecting long-term drug use.
Daily hair care may cause holes in hair fibers.
November 2025 in “Zenodo (CERN European Organization for Nuclear Research)” The herbal hair serum effectively supports hair growth, reduces hair fall, and improves shine.
5 citations
,
October 2012 in “CMAJ. Canadian Medical Association journal” The girl had harmless hair casts, not lice.
Hair loss is common in the studied community, often linked to aging and hair care practices like braids, weaves, and chemical relaxers.
November 2021 in “International journal of research - granthaalayah” The document suggests that human hair has electrical charges because of a gap in nerve cell coverage that affects electromagnetic radiation.
January 1997 in “Elsevier eBooks” Hair and nails are skin parts that develop early and serve protective and functional roles.
18 citations
,
January 1978 in “Advances in experimental medicine and biology” Hair cystine levels may indicate protein malnutrition, but more research is needed.
December 2025 in “Clinical Case Reports” Netherton syndrome causes skin and hair issues, confirmed by "bamboo hair" under dermoscopy, with no cure but managed with topical treatments.
11 citations
,
September 2010 in “American Journal of Medical Genetics - Part A” A Turkish family with sparse hair and eyebrow loss has a mutation in the U2HR gene linked to Marie Unna hereditary hypotrichosis.
January 2024 in “Journal of tissue engineering” Sunlight exposure damages hair follicles, but certain stem cell-derived particles can reduce this damage and help with hair regeneration.
28 citations
,
March 2014 in “Biological reviews/Biological reviews of the Cambridge Philosophical Society” The document concludes that hair curvature can be explained by the growth patterns caused by the shape and separation of cells in the hair follicle and is affected by specific molecular pathways.
March 2026 in “Journal of the mechanical behavior of biomedical materials/Journal of mechanical behavior of biomedical materials” Bleaching and UV exposure significantly damage hair.
December 2025 in “eTheses of Maulana Malik Ibrahim State Islamic University (Maulana Malik Ibrahim State Islamic University)” The formula significantly boosts hair growth and density.
30 citations
,
July 2000 in “PubMed” Hair has unevenly distributed proteins and lipids, with lipids mainly in the cuticle and proteins in the cortex and medulla.
June 2023 in “Zenodo (CERN European Organization for Nuclear Research)”
9 citations
,
April 2019 in “Journal of structural biology” Hair's internal fibers are arranged in a pattern that doesn't let much water in, and treatments like oils and heat change how much water hair can absorb.
264 citations
,
October 1958 in “Archives of Dermatology” A 4-year-old girl has a rare hair condition causing fragile, short hair.
49 citations
,
April 2010 in “International Journal of Cosmetic Science” Hair ages as the cuticle wears down, especially beyond 1 meter from the root, affecting its strength and shine.
28 citations
,
March 1942 in “Journal of Endocrinology” Male rats grow hair faster than females, and certain hormones can slow or slightly increase hair growth, but not significantly beyond natural rates.
January 2022 in “Consultant” 12 citations
,
February 2011 in “Zenodo (CERN European Organization for Nuclear Research)” Hair properties vary with age and ethnic origin.
34 citations
,
October 1982 in “Journal of applied polymer science” Moisture content significantly affects how human hair breaks.
April 2016 in “Journal of the American Academy of Dermatology” A 4-year-old girl had a rare hair disorder affecting only part of her scalp.