April 2017 in “Journal of Investigative Dermatology” Chemotherapy and radiation therapy cause skin and hair damage by altering gene expression and signaling pathways.
January 2014 in “한국미용학회지” UV-A radiation significantly damages semi-permanent dyed hair.
5 citations
,
June 2016 in “JAMA Dermatology” People with hair loss should use strong sun protection to prevent scalp skin cancer.
2 citations
,
December 2013 in “Journal of Cosmetic Dermatology” UV treatment can damage hair, so protection is advised.
September 2025 in “International Journal of Cosmetic Science” Heat and UV exposure damage hair structure by altering keratins.
24 citations
,
October 2008 in “PubMed” Excessive sun exposure damages hair, causing protein loss and color changes.
27 citations
,
January 2002 in “Exogenous Dermatology” Chronic exposure to sunlight may worsen male pattern baldness and protecting the scalp from the sun could slow it down.
April 2019 in “Journal of Investigative Dermatology” Caffeine can protect scalp hair follicles from damage caused by UV radiation.
24 citations
,
January 2009 in “International Journal of Trichology” Sunlight exposure ages hair, making it brittle, stiff, and dry.
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.
1 citations
,
March 2024 in “International journal of molecular sciences” Radiation therapy damages skin structure and immune function, causing inflammation and potential hair loss.
14 citations
,
September 2016 in “Journal of Photochemistry and Photobiology B Biology” UV exposure damages hair, increasing thiols and altering protein structure.
8 citations
,
March 2018 in “Cosmetics” UV radiation damages hair by creating holes and peeling cuticle layers.
November 2025 in “Journal of Investigative Dermatology” Radiation-induced hair loss may be caused by hair growth stopping and inflammation in blood vessels.
30 citations
,
November 1996 in “Archives of Dermatology” UV rays can cause a type of hair loss known as telogen alopecia.
27 citations
,
January 1995 Melanin in black hair protects it from sun damage better than light-brown hair.
2 citations
,
March 2025 in “Archives of Dermatological Research”
2 citations
,
March 2017 in “Asian Journal of Beauty and Cosmetology” Caffeic acid protects human scalp cells from UV 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.
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.
7 citations
,
October 2019 in “Klinická onkologie” Cancer treatments often cause hair loss and damage, affecting patients' mental health.
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.
9 citations
,
January 2021 in “Journal of the American Academy of Dermatology”
32 citations
,
August 2019 in “Nature Communications” Chemotherapy causes permanent hair follicle damage by triggering stem cell loss.
3 citations
,
October 2013 in “Photodermatology Photoimmunology & Photomedicine” The treatment is a safe and effective option for hair regrowth in patchy alopecia areata.
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.
30 citations
,
November 2013 in “PLOS ONE” Androgen receptor signaling causes early aging of cells important for hair growth by damaging their DNA.
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.
31 citations
,
February 2019 in “International Journal of Cosmetic Science” Caffeine applied to the scalp can protect hair follicles from UV damage.