October 2015 in “Cosmetic Dermatology” Hair straightening changes hair structure and can cause damage if done wrong, but improvements in the methods are expected to continue.
97 citations
,
January 2005 in “Wear” Human hair and skin friction vary by ethnicity, hair type, and environmental conditions.
5 citations
,
March 2012 in “Microscopy Research and Technique” UVB radiation changes the chemical makeup and dries out human hair but doesn't alter its appearance or texture.
78 citations
,
November 2005 in “Endocrinology” Hairless protein can block vitamin D activation in skin cells.
February 2022 in “Cosmetic Dermatology” Different hair care methods affect hair health and appearance, and there are many ways to camouflage hair loss.
3 citations
,
January 2015 in “Mathematical problems in engineering” Hair damage increases significantly with higher temperatures and longer heating times.
8 citations
,
August 1993 in “Colloid & Polymer Science” The observed "toughening" in keratin was actually due to water evaporation, not a real change in keratin.
2 citations
,
May 2010 in “Actas Dermo-Sifiliográficas” Home-use medical-cosmetic devices like lasers for hair removal may be convenient but need more research to confirm safety and effectiveness.
April 2018 in “The journal of investigative dermatology/Journal of investigative dermatology” Electrical epilation damages hair follicles and surrounding skin, likely preventing hair regrowth.
January 2002 in “China Surfactant Detergent & Cosmetics” Shampoo D is best for fixing perm-damaged hair.
21 citations
,
June 2023 in “Proceedings of the National Academy of Sciences” Tightly curled scalp hair helps reduce heat from the sun, protecting against overheating.
2 citations
,
July 2024 in “Journal of Cosmetic Dermatology” The HAIR-Q is a reliable tool for assessing patient satisfaction with hair loss treatments.
16 citations
,
October 2003 in “Journal of applied polymer science” 2-iminothiorane hydrochloride improves hair waving permanence without damage.
10 citations
,
February 2008 in “Photochemistry and photobiology” Vitamin D receptor can control the hairless gene linked to hair loss even without vitamin D.
December 2025 in “Zenodo (CERN European Organization for Nuclear Research)” Thermal protectants help reduce hair damage from heat styling.
December 2025 in “Zenodo (CERN European Organization for Nuclear Research)” Thermal protectants help reduce hair damage from heat styling.
May 2023 in “Tạp chí Y Dược học Cần Thơ” The shampoo with grapefruit peel and Gleditsia sinensis helps mice grow hair faster, more, and longer.
January 2009 in “Rossiiskii Zhurnal Kozhnykh i Venericheskikh Boleznei” January 2024 in “SSRN Electronic Journal” 1 citations
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January 2010 in “Han-guk hyeonmigyeong hakoeji/Applied microscopy” Straight permed hair loses weight faster than virgin hair when heated, but ends up heavier after burning.
92 citations
,
September 2019 in “ACS nano” A wearable device using electric stimulation can significantly improve hair growth.
2 citations
,
January 2011 in “Lecture Notes in Computer Science” A proposed robotic system could make hair harvesting for baldness treatment faster and more precise.
27 citations
,
February 1991 Cuticle damage doesn't affect hair's tensile strength; the cortex is responsible for it.
Mutations in the hairless protein gene cause hair loss.
13 citations
,
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.
January 2017 in “Nihon Keshouhin Gijutsushakaishi/Journal of S C C./Nihon Keshouhin Gijutsushakai kaishi” Sunlight and chemical treatments change hair's internal structure differently, needing specific care.
29 citations
,
December 1998 in “European Respiratory Journal” Hair bleach can make rabbit airways more sensitive.
3 citations
,
January 2019 in “Skin Research and Technology” Frequent use of hair straighteners can cause hair loss similar to scarring alopecia in young Turkish women.
17 citations
,
July 2018 in “International Journal of Cosmetic Science” Keratin-based particles safely improve hair strength, smoothness, and heat protection.
December 2023 in “Data in Brief” Curly hair's strength and flexibility vary with moisture and temperature.