37 citations
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October 2015 in “PeerJ” Perming significantly changes hair's molecular structure, while shampoo and conditioner do not.
March 2026 in “Medical Lasers” Adjusting hair dryer settings improves drying efficiency and keeps hair healthy.
December 2025 in “The American Journal of Medical Sciences and Pharmaceutical Research” Ultrasonic and infrared treatments can improve hair strength and appearance with minimal damage.
December 2023 in “Data in Brief” Curly hair's strength and flexibility vary with moisture and temperature.
78 citations
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June 2003 in “Journal of the American Academy of Dermatology” Curly hair shape is determined by the hair bulb.
Curly wool has more orthocortex than straight wool.
7 citations
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December 2015 in “Journal of thermal biology” Scalp cooling devices need to be powerful enough to overcome heat loss and reach the right temperature to prevent hair loss from chemotherapy.
September 2020 in “Benha Journal of Applied Sciences” Protein hair straighteners damage the hair more than hair dyes.
112 citations
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September 1968 in “PubMed” Hot comb use can cause permanent hair loss on the scalp.
20 citations
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October 1996 in “Journal of the American Academy of Dermatology”
Perms can damage hair and scalp, so proper assessment and care are essential.
62 citations
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December 2008 in “Journal of structural biology” Hair curvature in Japanese people is linked to specific cell types and filament arrangements in the hair cortex.
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.
2 citations
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January 2022 in “Anais brasileiros de dermatologia/Anais Brasileiros de Dermatologia” Chemical hair straighteners can cause scalp and hair damage, but long-term effects are unclear.
September 2011 in “European journal of cancer” Chemical treatments weaken hair's thermal stability and structure.
16 citations
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October 2003 in “Journal of applied polymer science” 2-iminothiorane hydrochloride improves hair waving permanence without damage.
2 citations
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March 2018 in “ACS Sustainable Chemistry & Engineering” Heating human hair creates hollow microtubes with smooth surfaces.
January 2024 in “Dermatologic Surgery” The device is useful for anesthesia, healing treatments, and preventing hair loss.
40 citations
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June 2013 in “Journal of cosmetic dermatology” Brazilian keratin treatments can straighten hair but may contain harmful formaldehyde.
January 2012 in “Jounal of The Korean Society of cosmetology” Applying conditioner mid-treatment reduces hair damage during perms.
June 2025 in “Journal of Cosmetic Dermatology” Bathroom heating lamps can damage hair, causing it to become dry, brittle, and broken.
3 citations
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June 2008 in “Springer eBooks” Hair care products clean, protect, style, color, and change hair structure.
1 citations
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January 2006 High temperatures and cosmetic processes can damage hair keratin, affecting its structure and strength.
2 citations
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June 2023 in “International Journal of Women’s Dermatology” Coily/curly hair products cost more than straight hair products, highlighting a need for fair pricing.
21 citations
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June 2023 in “Proceedings of the National Academy of Sciences” Tightly curled scalp hair helps reduce heat from the sun, protecting against overheating.
107 citations
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September 1968 in “Archives of Dermatology” Using hot combs can cause permanent hair loss on the scalp's crown.
June 2014 in “Professional Beauty” 4 citations
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June 2022 in “ACS applied materials & interfaces” New wig coating technique makes them more durable, UV resistant, and less static.
15 citations
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January 1998 Frequent blow-drying causes cracks and breakage in hair cuticles.