Hair coloring and bleaching can permanently break down hair protein and temporarily change its properties.
4 citations
,
April 1983 in “The Journal of Dermatology” A 15-year-old girl with hypothyroidism had excess hair and skin issues due to blocked hair follicles.
2 citations
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September 2008 in “International Journal of Cosmetic Science” Brushing causes more long hair breaks than combing, especially with bleached or wet hair.
January 2026 in “Psychoneuroendocrinology” Lye relaxers don't significantly change hair cortisol levels.
25 citations
,
March 2002 in “Scanning” Confocal microscopy is better than scanning electron microscopy for studying hair in its natural state and understanding hair products' effects.
Effective treatments and proper care can manage hair disorders.
August 2023 in “Portuguese journal of dermatology and venereology” Changing hairstyles can prevent hair loss caused by tension.
24 citations
,
January 2009 in “International Journal of Trichology” Sunlight exposure ages hair, making it brittle, stiff, and dry.
November 2016 in “Hanbang an'i'bi'in'hu pibu'gwa haghoeji” Korean and Western medicine have different effects on hair health.
27 citations
,
February 1991 Cuticle damage doesn't affect hair's tensile strength; the cortex is responsible for it.
January 2026 in “Biomedical and Biopharmaceutical Research” Pequi and buriti oils improve curly hair's gloss and strength.
4 citations
,
January 2006 in “International Journal of Cosmetic Science” The method shows how hair lipids form specific patterns and their roles in hair structure.
4 citations
,
June 1990 in “PubMed” Hair protein differences help identify species and individuals in forensic science.
2 citations
,
August 2002 in “PubMed” October 2025 in “Nephrology Dialysis Transplantation” Hair-straightening products with glyoxylic acid can cause kidney damage.
June 2008 in “Springer eBooks” 6 citations
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January 2021 in “Journal of the mechanics and physics of solids/Journal of the Mechanics and Physics of Solids” The model shows that factors like follicle shape and stiffness are key for hair growth and anchoring.
April 2026 in “Journal of Cosmetic Dermatology” More research is needed to create personalized treatments for seborrheic dermatitis in people with curly hair.
7 citations
,
June 1967 in “Journal of Investigative Dermatology” Plucking hairs in a certain way can result in intact hair roots, not related to baldness.
23 citations
,
January 1981 Hair is mostly made of three protein types: helical, high-sulfur, and high-tyrosine.
4 citations
,
April 2018 in “The journal of pediatrics/The Journal of pediatrics” A 6-year-old girl's inability to grow her hair long was due to Loose Anagen Hair Syndrome, which causes hair to shed easily and may improve with age.
Yak hair stretches mainly due to macromolecules slipping past each other.
February 2025 in “Brazilian Journal of Hair Health” The Brazilian candle flame technique can damage hair by melting the cuticle and exposing the cortex.
January 2012 in “TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES AEROSPACE TECHNOLOGY JAPAN” Human hair can be used to study mineral changes from long-term space flight.
39 citations
,
June 2012 in “Journal of Structural Biology” Disulfide bonds are crucial for hair structure during keratinization.
18 citations
,
August 2009 in “Skin Research and Technology” OCT can identify hair structures, but chemical treatments can damage them.
24 citations
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January 1969 in “Archives of Dermatological Research” Hair malformations may occur due to timing issues in hair development.
April 2026 in “Aesthetic Plastic Surgery” Refined hair transplantation techniques improved facial aesthetics and satisfaction in East Asian females.
1 citations
,
September 2003 in “CRC Press eBooks” Hair is important for social and sexual communication in humans.
53 citations
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March 2006 in “Biopolymers” TTD hair is brittle due to fewer sulfur amino acids and unstable disulfide bonds.