Keratin hydrogels from human hair show promise for tissue engineering and regenerative medicine.
Human scalp hair follicles have PGE2 and its receptors, which might affect hair growth.
May 2004 in “International Journal of Cosmetic Science” Melanogenesis inhibitors like kojic acid and niacinamide can reduce inflammation and pigment production in skin cells.
September 1984 in “Journal of Biological Education” Human hair growth involves active, resting, and intermediate phases, and examining plucked hairs can teach students about hair biology and diseases.
March 1963 in “Sangyo Igaku” Women generally have higher levels of iron, copper, and zinc in their hair than men, with differences increasing with age.
1 citations
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June 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” Fetal skin has unique immune cells different from adult skin.
April 2018 in “The journal of investigative dermatology/Journal of investigative dermatology” Researchers found a new way to isolate sweat glands from the scalp for study and culture.
56 citations
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November 2010 in “Pigment Cell & Melanoma Research” Brain hormones significantly affect hair color and could potentially be used to prevent or reverse grey hair.
13 citations
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November 2014 in “Toxicology Letters” Finasteride affects UGT1A4 enzyme, but not enough to cause issues when combined with other drugs.
45 citations
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December 2006 in “Biopolymers” Permanent waving weakens hair by altering its protein structure.