289 citations
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May 2003 in “Journal of Investigative Dermatology” Human skin can produce steroids from cholesterol.
171 citations
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July 2007 in “Journal of Investigative Dermatology” A substance called DKK-1 increases in balding areas and causes hair cells to die when exposed to DHT.
105 citations
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December 1995 in “British journal of dermatology/British journal of dermatology, Supplement” PUVA treatment is generally ineffective for alopecia areata.
101 citations
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July 1998 in “Journal of Investigative Dermatology” UVB exposure in human skin causes macrophages to produce more IL-10 and less IL-12, leading to immunosuppression.
100 citations
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September 1999 in “British Journal of Dermatology” The study found that two enzymes linked to hair loss are located in different parts of the scalp, supporting a common treatment's effectiveness.