September 2025 in “International Journal of Cosmetic Science” Heat and UV exposure damage hair structure by altering keratins.
Different types of sun exposure can damage skin cells and affect healing, with chronic exposure being more harmful, and certain immune cells help in the repair process.
23 citations
,
August 2019 in “Proceedings of the National Academy of Sciences of the United States of America” Pollution exposure speeds up hair damage.
9 citations
,
September 2009 in “Journal of Cutaneous Medicine and Surgery” UV light causes skin color loss in bald areas; wear a cap and use sunscreen.
16 citations
,
October 2015 in “Photochemistry and photobiology” Reducing copper (II) ion levels in hair can decrease hair damage.
November 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Skin cells and certain hair follicle areas produce hemoglobin, which may help protect against oxidative stress like UV damage.
October 2022 in “Frontiers in Cell and Developmental Biology” Aging skin is affected by inflammation, reduced stem cell function, and slower wound healing.
5 citations
,
November 2003 in “PubMed” Chemical treatments and light exposure damage hair proteins.
33 citations
,
November 2012 in “Journal of The American Academy of Dermatology” FPHL common in Taiwanese women; risk factors include BMI, high glucose, early puberty, fewer childbirths, oral contraceptives, and UV exposure.
24 citations
,
January 2009 in “International Journal of Trichology” Sunlight exposure ages hair, making it brittle, stiff, and dry.
2 citations
,
December 2013 in “Journal of Cosmetic Dermatology” UV treatment can damage hair, so protection is advised.
June 1997 in “Australasian Journal of Dermatology” Researchers found new hair and nail genes, how hair reacts to UV, differences in white and pigmented hair growth, nerve changes in alopecia, treatments for baldness and alopecia, a toenail condition linked to a genetic disorder, and that nail fungus is more common in people with psoriasis.
19 citations
,
July 2009 in “Clinical and Experimental Dermatology” The study found that long-term sun exposure does not significantly affect follicular plugs on the scalp, and the scalp's appearance is unique compared to other body parts.
3 citations
,
January 2005 in “Photochemistry and Photobiology” Protein kinase C epsilon may promote skin cancer development after UV exposure by affecting nearby cells.
6 citations
,
August 1993 in “Archives of Dermatology” The study found that polymorphous light eruption varies among patients and can be distinguished from benign summer light eruption by the time it takes for symptoms to appear after sun exposure.
9 citations
,
May 2013 in “JAMA Dermatology” Sunlight exposure improved a patient's skin condition, and there may be a link between a certain disease and skin growths; a leukemia treatment caused changes in hair color and growth.
14 citations
,
September 2016 in “Journal of Photochemistry and Photobiology B Biology” UV exposure damages hair, increasing thiols and altering protein structure.
144 citations
,
December 2017 in “Pigment cell & melanoma research” Melasma is now considered a skin aging disorder caused by sun exposure in people with a genetic tendency, which impacts treatment and prevention approaches.
November 2016 in “Universiti Putra Malaysia Institutional Repository (Universiti Putra Malaysia)” Dendrobium sabin flower extract may help reduce skin aging from UV exposure.
November 2022 in “Journal of Investigative Dermatology” The study found that skin inflammation and immune response pathways are activated in Solar Urticaria patients after UV exposure, unlike in healthy people.
December 2024 in “Cell Communication and Signaling” Fat tissue vesicles protect skin from UV damage better than stem cell vesicles.
31 citations
,
February 1999 in “Dermatologic surgery” Sun exposure after laser hair removal can cause skin darkening, which is hard to treat and requires avoiding UV light.
18 citations
,
January 1994 in “Skin pharmacology and physiology” Sunlight damages hair, causing cuticle loss, protein changes, and discoloration.
11 citations
,
April 2013 in “SpringerPlus” Human skin's melanocytes respond to light by changing shape, producing pigments and hormones, which may affect sleep patterns.
33 citations
,
January 2004 in “Photochemistry and Photobiology” Superoxide dismutase (SOD) can prevent hair graying in mice.
7 citations
,
January 2001 in “Comprehensive series in photosciences” UV radiation significantly damages hair, especially with humidity, making it more vulnerable to further damage.
32 citations
,
September 1989 in “Medical Clinics of North America” Skin problems are common in lupus, important for diagnosis, and can be triggered by sunlight.
2 citations
,
September 2022 in “Annals of Medicine and Surgery” A man with a rare scalp cancer was successfully treated, highlighting the need for early management to prevent spread and complications.
January 2021 in “Journal of clinical and cosmetic dermatology” Human skin responds to light with protective mechanisms, but more research is needed to understand these processes and their implications for health and therapy.
September 2024 in “Journal of Cosmetic Dermatology” Quercetin-loaded nanoparticles protect human hair from UV-B damage.