67 citations,
August 2013 in “International Journal of Cosmetic Science” Hair greying is caused by oxidative stress damaging hair follicles and melanocytes.
56 citations,
December 2010 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair follicle cells age faster and lose pigment due to less catalase, causing hair to turn gray.
44 citations,
March 2004 in “Journal of Investigative Dermatology” The effects of estrogen on human hair growth are unclear and need more research.
20 citations,
October 2008 in “Archives of dermatological research” Angiogenin helps hair grow by stimulating cell growth and blood vessel formation.
13 citations,
December 1983 in “Canadian journal of zoology” Heterotypic cell contacts likely help hair matrix cells differentiate during mouse hair follicle development.
8 citations,
May 2005 in “Fertility and Sterility” A specific gene variation is linked to a higher risk of polycystic ovary syndrome in Caucasian women.
7 citations,
June 2021 in “Cell Proliferation” Low oxygen levels improve the function of hair and skin cells when they are in direct contact.
4 citations,
January 2007 in “Sen'i Gakkaishi” Permed hair degrades faster and shows more damage after protease treatment compared to untreated hair.
2 citations,
October 2022 in “Current Allergy and Asthma Reports” Biologic therapies can cause various adverse events, but allergy/immunology clinicians can manage them.
1 citations,
June 2004 in “Sexuality, reproduction & menopause” Eflornithine cream effectively reduces facial hair in women with hirsutism.