23 citations
,
May 2010 in “Surface and interface analysis” Chemical treatments and UV radiation severely damage the lipid layer on hair.
2 citations
,
December 2013 in “Journal of Cosmetic Dermatology” UV treatment can damage hair, so protection is advised.
Hair coloring and bleaching can permanently break down hair protein and temporarily change its properties.
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.
January 2011 in “Junshi yixue” Longer exposure to high-power millimeter wave radiation causes more severe skin damage in mice.
April 2017 in “Journal of Investigative Dermatology” Chemotherapy and radiation therapy cause skin and hair damage by altering gene expression and signaling pathways.
22 citations
,
May 2016 in “Breast cancer research and treatment” Some patients using cold caps to prevent hair loss from chemotherapy got mild scalp injuries similar to frostbite.
December 2020 in “Nippon Laser Igakkaishi” Photobiomodulation therapy is beneficial in plastic surgery and dermatology.
Chemical treatments weaken hair's thermal stability and structure.
January 2026 in “National Science Review”
4 citations
,
June 2019 in “International Journal of Cosmetic Science” Heat transfer in hair is slower in groups of hair, increasing the risk of damage from high-temperature styling tools.
3 citations
,
October 2020 in “Dermatology Practical & Conceptual” Bubble hair damage is caused by high heat from styling tools, and trichoscopy helps diagnose it.
January 2005 in “Seibutsu Butsuri/Seibutsu butsuri” Chemical treatments damage hair more than UV exposure, making it thinner and less flexible.
14 citations
,
September 2016 in “Journal of Photochemistry and Photobiology B Biology” UV exposure damages hair, increasing thiols and altering protein structure.
September 2017 in “Journal of Investigative Dermatology” Photodynamic therapy can potentially remove nonpigmented hair by damaging hair follicles.
22 citations
,
September 1986 in “Journal of Investigative Dermatology” Low-dose topical alpha-terthienyl may be a safer option for treating skin conditions with light therapy.
June 2025 in “Journal of Cosmetic Dermatology” Bathroom heating lamps can damage hair, causing it to become dry, brittle, and broken.
13 citations
,
March 2019 in “Journal of cosmetic dermatology” Heat damages hair, with Asian hair losing more protein than Caucasian hair.
27 citations
,
January 1995 Melanin in black hair protects it from sun damage better than light-brown hair.
8 citations
,
March 2018 in “Cosmetics” UV radiation damages hair by creating holes and peeling cuticle layers.
1 citations
,
March 2024 in “International journal of molecular sciences” Radiation therapy damages skin structure and immune function, causing inflammation and potential hair loss.
8 citations
,
March 2022 in “Cancers” Proton minibeam radiotherapy may reduce skin side effects by causing localized DNA damage.
53 citations
,
January 2009 in “Journal of Investigative Dermatology” UVB radiation harms hair growth and health, causing cell death and other changes in human hair follicles.
3 citations
,
January 2015 in “Mathematical problems in engineering” Hair damage increases significantly with higher temperatures and longer heating times.
24 citations
,
January 2009 in “International Journal of Trichology” Sunlight exposure ages hair, making it brittle, stiff, and dry.
1 citations
,
June 2006 in “Journal of Cosmetic Dermatology” Photoepilation may disrupt normal wound healing and increase the risk of scars.
22 citations
,
July 2004 in “International Journal of Cosmetic Science” UV radiation and visible light can damage hair, but there are ways to protect it.
1 citations
,
April 2023 in “Canadian journal of ophthalmology” Using a diode laser for hair removal without eye protection can cause serious eye injuries.
15 citations
,
January 2003 in “Lasers in Surgery and Medicine” Cold air and a chilled sapphire window both protect the skin during laser treatments, and work better with water or gel, especially for darker skin.
45 citations
,
May 2019 in “Scientific Reports” Low color temperature light (1900 K) benefits health by promoting melatonin, protecting eyes, and aiding healing.