249 citations
,
April 2002 in “The FASEB journal” Human skin can make serotonin and melatonin.
210 citations
,
July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair color production in mice is closely linked to the hair growth phase and may also influence hair growth itself.
209 citations
,
September 2008 in “Dermatologic Therapy” Androgens can both increase and decrease hair growth in different parts of the body.
205 citations
,
March 2012 in “Science Translational Medicine” PGD2 stops hair growth and is higher in bald men with AGA.
196 citations
,
May 2001 in “The journal of investigative dermatology/Journal of investigative dermatology” Sebocytes play a key role in controlling androgen levels in human skin.
190 citations
,
October 2002 in “The FASEB journal” Androgens may cause hair loss by increasing TGF-beta1 from scalp cells, which inhibits hair cell growth.
185 citations
,
June 2011 in “Molecular and cellular endocrinology” Skin cells produce and activate vitamin D, which regulates skin functions and supports hair growth.
182 citations
,
May 2003 in “Development” Myc activation reduces skin stem cells by affecting cell adhesion.
172 citations
,
July 2007 in “Journal of Dermatological Science” Stat3 helps skin heal but can also cause skin diseases if overactive.
165 citations
,
January 2008 in “Journal of biomaterials science. Polymer ed.” The peptide GHK-Cu helps heal and remodel tissue, improves skin and hair health, and has potential for treating age-related inflammatory diseases.