221 citations
,
July 2012 in “Proceedings of the National Academy of Sciences of the United States of America” BMAL1 controls skin cell growth and UV damage risk, peaking at night.
139 citations
,
February 2014 in “Journal of Advanced Research” Vitamin D is important for skin health and may affect conditions like psoriasis and hair loss, but more research is needed to understand its role fully.
52 citations
,
August 1978 in “Journal of Applied Polymer Science” Human hair's ability to get wet is complex and can change with treatments, damage, and environment.
34 citations
,
January 2011 in “Annals of dermatology/Annals of Dermatology” Using a hair dryer at 15 cm with continuous motion causes less damage than natural drying.
19 citations
,
October 2008 in “Journal der Deutschen Dermatologischen Gesellschaft” Anti-cancer treatments can cause reversible hair loss, skin sensitivity, pigmentation changes, nail damage, and skin reactions, with a need for more research on managing these side effects.
16 citations
,
October 2015 in “Photochemistry and photobiology” Reducing copper (II) ion levels in hair can decrease hair damage.
12 citations
,
January 2007 in “Current problems in dermatology” Environmental and cosmetic factors, including heat, chemicals, and sun exposure, can cause hair loss and damage.
10 citations
,
June 2016 in “The journal of investigative dermatology/Journal of investigative dermatology” Vitamin D receptor helps protect skin cells from UV damage and supports their growth.
1 citations
,
January 2012 in “Elsevier eBooks” The document concludes that the skin is a complex organ providing protection, sensation, and healing, with challenges in treating conditions like itchiness.
September 2025 in “International Journal of Cosmetic Science” Heat and UV exposure damage hair structure by altering keratins.
86 citations
,
June 2017 in “Anais Brasileiros de Dermatologia” Antioxidants can benefit skin health but should be used carefully to avoid negative effects.
8 citations
,
March 2018 in “Cosmetics” UV radiation damages hair by creating holes and peeling cuticle layers.
175 citations
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November 2009 in “PLOS ONE” Women look young for their age due to larger lips, less sun damage, and genes that prevent gray hair and wrinkles.
138 citations
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November 2015 in “Journal of Pharmacology and Experimental Therapeutics” Protoporphyrin IX is useful in cancer treatment but can cause health problems if not properly regulated.
126 citations
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January 2009 in “International Journal of Trichology” Oxidative stress contributes to hair graying and loss as we age.
106 citations
,
July 2013 in “Advances in wound care” UV radiation can help sterilize wounds and promote healing but requires careful use to avoid damaging cells.
87 citations
,
March 2000 in “American Journal of Clinical Dermatology” Alpha-hydroxy acids, like glycolic acid, safely improve skin issues and work on all skin types.
61 citations
,
September 2020 in “Bioactive Materials” A special dressing called FEA-PCEI can speed up wound healing, reduce scars, and help grow new hair follicles, but only at the right dosage.
41 citations
,
October 2000 in “Dermatologic clinics” Better hair care products are needed to protect against grooming and chemical damage.
36 citations
,
September 2009 in “Journal of Cellular and Molecular Medicine” New treatments targeting skin stem cells show promise for skin repair, anti-aging, and cancer therapy.
31 citations
,
October 2012 in “Archives of ophthalmology” Laser hair reduction near the eyebrows can cause serious eye injuries even with safety measures.
27 citations
,
May 2016 in “Dermatologic Surgery” Male faces age with more wrinkles and hair loss, influenced by both body changes and environmental factors.
23 citations
,
August 1987 in “Australasian Journal of Dermatology” Older adults in Ottawa commonly have skin conditions like sun damage, dry skin, and hair loss.
11 citations
,
January 2004 in “Exogenous dermatology” Outside factors like grooming, chemicals, and the environment can damage hair and cause disorders.
10 citations
,
January 2012 in “Journal of Biological Macromolecules” Keratin film can effectively replace human hair for testing hair damage.
9 citations
,
February 2014 in “Tissue Engineering and Regenerative Medicine” Conditioned media from human amniotic fluid-derived stem cells helps skin heal and protects against aging from sun exposure.
6 citations
,
December 2010 in “Journal of Cosmetic Dermatology” Apoptosis may contribute to hair loss in androgenetic alopecia.
5 citations
,
October 1984 in “The BMJ” Up to 50% of scalp hair can be lost before it appears thin, and treatment is only needed for hair loss caused by diseases or deficiencies.
4 citations
,
July 2010 in “Journal of Plastic Reconstructive and Aesthetic Surgery” A man developed a rare cancer on his scalp after a hair transplant possibly due to sun damage, laser effects, and inflammation.
1 citations
,
March 2005 in “International Journal of Cosmetic Science” Twisting hair weakens it, but strength can be recovered at low twist levels.