Hair care products can cause skin irritation and allergies.
Oxidized hair can naturally regain strength and stability over six months.
9 citations
,
March 2005 in “International Journal of Cosmetic Science” The torsional method effectively evaluates hair damage and the performance of hair care ingredients.
November 2025 in “Cosmetics” Rice germ oil improves hair health, but adding ferulic acid offers limited benefits and may worsen chemically damaged hair.
63 citations
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October 2011 in “Archives of Dermatology” Isolated long hairs at the original hairline can help diagnose Frontal Fibrosing Alopecia.
February 2024 in “Journal of Dermatological Science” Curved hair can develop when hair cells merge abnormally during growth.
Hydrophobic modifications make human hair less affected by water.
2 citations
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January 2018 in “Indian dermatology online journal” A homeopathic antidandruff shampoo caused severe hair matting in a girl.
May 2017 in “Journal of the American Academy of Dermatology” Monilethrix is a rare, inherited condition causing fragile hair and hair loss, with no cure but some treatments may help.
Modern hair styling products don't repair hair but improve its surface and stability.
Afro-textured hair is more fragile and prone to certain scalp conditions, requiring careful treatment and more research for effective management.
5 citations
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July 2009 in “Clinical and experimental dermatology”
4 citations
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April 2019 in “Cosmetics” Hair stiffness is higher when it has more para-like cortical cells.
72 citations
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December 2011 7 citations
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January 2009 in “BMJ Case Reports” Gefitinib can cause slower, finer, brittle, and curly scalp hair.
November 2021 in “International journal of biology, pharmacy and allied sciences” Air pollution is a major cause of hair fall, scalp problems, and dandruff.
November 2022 in “International journal of trichology” Glyoxylic acid straighteners cause more protein loss but have similar hair strength effects as traditional alkaline straighteners.
1 citations
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June 2023 in “Journal of applied crystallography” The technique showed that human hair has two main parts, with 68% being rigid and the rest flexible, and water swelling affects its structure.
28 citations
,
July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” 4 citations
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June 2017 in “Annales de dermatologie et de vénéréologie” The study found that a specific type of hair loss is increasingly common in premenopausal women and can be effectively diagnosed and treated with various medications.
13 citations
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March 2006 in “International Journal of Cosmetic Science” The study found that a polymer treatment changes the charge on hair surfaces, making bleached hair smoother and less porous.
24 citations
,
January 2009 in “International Journal of Trichology” Sunlight exposure ages hair, making it brittle, stiff, and dry.
4 citations
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May 2020 in “The journal of pediatrics/The Journal of pediatrics” A boy with monilethrix has brittle hair that breaks easily due to a genetic condition, which might improve by puberty.
January 2024 in “Updates in clinical dermatology” Frontal fibrosing alopecia is a scarring hair loss condition mainly affecting postmenopausal women, with unclear causes.
February 2020 in “Definitions” Telogen Effluvium is a condition where more hair than usual falls out after stress or fever.
January 2017 in “Elsevier eBooks” Telogen effluvium is a condition that causes temporary hair loss due to stress or shock to the body.
1 citations
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November 2023 in “Indian Dermatology Online Journal” Severe itching from shingles can cause hair loss due to rubbing.
8 citations
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October 2014 in “Journal of analytical toxicology.” Chemical hair straightening significantly reduces detectable drug levels in hair.