44 citations
,
March 2004 in “Journal of Investigative Dermatology” The effects of estrogen on human hair growth are unclear and need more research.
44 citations
,
November 1998 in “Australasian Journal of Dermatology” Accurate diagnosis is key for treating different kinds of hair loss, and immune response variations may affect the condition and treatment results.
43 citations
,
April 2017 in “Experimental Dermatology” Female pattern hair loss has unclear causes, possibly involving genetics, hormones, and environment, and needs better treatments.
43 citations
,
May 1988 in “British Journal of Dermatology” Patients with acanthosis nigricans often have insulin resistance and signs of increased male hormones, but treatment targeting these male hormones is generally ineffective.
43 citations
,
November 1975 in “Archives of Dermatology” Testosterone affects hair loss, acne, and excessive hair growth, and antiandrogens can help treat these conditions.
41 citations
,
October 2011 in “Clinical and Experimental Dermatology” G allele of AR Stul polymorphism linked to higher hair loss risk, especially in white people.
41 citations
,
June 2010 in “Clinics in Dermatology” Smoking harms skin health, causing slower wound healing, more wrinkles, and worsening some skin conditions, but may protect against certain others.
41 citations
,
January 2009 in “International Journal of Trichology” 58% of men aged 30-50 have hair loss, with severity increasing with age.
41 citations
,
May 2001 in “PubMed” Different thicknesses of hair strands can indicate the severity of hair thinning.
41 citations
,
March 1998 in “Archives of Dermatological Research” The enzyme that changes testosterone to a stronger form is mostly found in the part of the hair follicle called the dermal papilla.