30 citations
,
November 2005 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” The lipid in human hair follicles acts as a barrier, similar to the skin's lipid layer.
December 2025 in “Brazilian Journal of Hair Health” The Spiral Model helps understand hair growth changes with age and identify hair problems early.
46 citations
,
May 2006 in “Laser Physics” Particles similar in size to hair cells penetrate hair follicles better.
7 citations
,
October 2013 in “International Journal of Dermatology” Post-waxing folliculitis is common on arms and forearms, and further biopsies are needed to understand it better.
2 citations
,
June 1980 in “International Journal of Dermatology” Scalp biopsies are important for diagnosing hair loss conditions.
January 2024 in “Journal of Cosmetic Dermatology” Men's and women's pattern hair loss progress differently, with men showing more hair thinning and women having more widespread hair loss.
224 citations
,
March 2006 in “Seminars in Cutaneous Medicine and Surgery” The document concludes that understanding hair follicle biology can lead to better hair loss treatments.
115 citations
,
August 2008 in “The Journal of Clinical Endocrinology & Metabolism” Thyroid hormones help hair grow, reduce hair loss, and increase hair pigment.
77 citations
,
January 1980 in “Carcinogenesis” TPA is about 50 times more effective at promoting tumors than MZ.
76 citations
,
March 2005 in “Journal of Molecular Medicine” Certain mice without specific receptors or mast cells don't lose hair from stress.