27 citations
,
January 1995 Melanin in black hair protects it from sun damage better than light-brown hair.
12 citations
,
June 2010 in “Journal of dermatology” Some patients with severe alopecia areata developed skin darkening from their treatment, which may indicate a less effective response to the therapy.
2 citations
,
March 2017 in “Asian Journal of Beauty and Cosmetology” Caffeic acid protects human scalp cells from UV damage.
30 citations
,
November 1996 in “Archives of Dermatology” UV rays can cause a type of hair loss known as telogen alopecia.
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.
8 citations
,
March 2018 in “Cosmetics” UV radiation damages hair by creating holes and peeling cuticle layers.
January 1953 in “The Lancet” Alopecia areata's causes are unclear, treatments exist but relapses are common.
16 citations
,
November 2009 in “Experimental dermatology” Ionizing radiation damages human hair follicles by stopping cell growth, causing cell death, disrupting color, and increasing stress and damage markers.
14 citations
,
September 2016 in “Journal of Photochemistry and Photobiology B Biology” UV exposure damages hair, increasing thiols and altering protein structure.
17 citations
,
January 2010 in “International journal of trichology” A man experienced hair loss from radiotherapy, which can be temporary or permanent depending on radiation dose, with potential treatments available.
1 citations
,
March 2024 in “International journal of molecular sciences” Radiation therapy damages skin structure and immune function, causing inflammation and potential hair loss.
24 citations
,
January 2006 in “Dermatologic clinics” Hair sunscreens are important for maintaining hair's cosmetic value.
April 2026 in “Zenodo (CERN European Organization for Nuclear Research)” DHT increases scalp heat, causing hair loss.
January 2026 in “Современные проблемы науки и образования (Modern Problems of Science and Education)” 308 nm excimer phototherapy can help some people with alopecia areata regrow hair, especially if their condition is less severe.
November 2025 in “Journal of Investigative Dermatology” Radiation-induced hair loss may be caused by hair growth stopping and inflammation in blood vessels.
November 2021 in “CRC Press eBooks” Anagen effluvium is a reversible condition causing sudden hair loss, often due to chemotherapy or head radiation.
April 2026 in “Zenodo (CERN European Organization for Nuclear Research)” DHT increases scalp heat, causing hair loss.
32 citations
,
August 2019 in “Nature Communications” Chemotherapy causes permanent hair follicle damage by triggering stem cell loss.
9 citations
,
January 2021 in “Journal of the American Academy of Dermatology” 28 citations
,
June 2012 in “International Journal of Molecular Medicine” Radiation damages hair stem cells and changes keratin expression, with Krt5 as a potential marker for radiation effects.
January 1985 in “Clinical research” Topical alpha-terthienyl with UVA may safely treat psoriasis without cancer risk.
13 citations
,
March 2008 in “Journal of the European Academy of Dermatology and Venereology” Triamcinolone acetonide therapy for hair loss may cause a skin condition called linear lichen planus.
34 citations
,
December 2009 in “Journal of the American Academy of Dermatology” Improper use of ceramic flat irons can cause severe hair damage.
7 citations
,
October 2019 in “Klinická onkologie” Cancer treatments often cause hair loss and damage, affecting patients' mental health.
Alkylating agents can kill cancer cells but may cause skin and allergic reactions.
30 citations
,
November 2013 in “PLOS ONE” Androgen receptor signaling causes early aging of cells important for hair growth by damaging their DNA.
January 2023 in “Skin appendage disorders” A woman's hair grew back after treatment for a rare hair loss caused by proton therapy.
12 citations
,
January 2011 in “Photodermatology, photoimmunology & photomedicine” This therapy effectively treats resistant alopecia areata with minimal side effects.
14 citations
,
January 2014 in “Cells Tissues Organs” Ionizing radiation causes irreversible skin damage, with single doses leading to acute injury and hair graying, and fractional doses causing more severe long-term tissue damage.
May 2026 in “International Journal of Cosmetic Science” UV radiation damages hair similar to bleaching, but double bleaching causes more severe protein degradation.