249 citations,
April 2002 in “The FASEB journal” Human skin can make serotonin and melatonin.
239 citations,
November 2000 in “Journal of The American Academy of Dermatology” Finasteride doesn't effectively treat hair loss in postmenopausal women.
204 citations,
October 1999 in “EMBO journal” Overexpression of activin A in mice skin causes skin thickening, fibrosis, and improved wound healing.
195 citations,
January 2008 in “Photochemistry and Photobiology” Visible light can damage skin and most sunscreens don't block it well; more research is needed on its effects and protection methods.
180 citations,
January 2003 in “American Journal of Clinical Dermatology” Menopause can lead to skin and hair problems due to hormonal changes, but hormone replacement therapy might help slow these effects.
165 citations,
September 2003 in “Toxicology and applied pharmacology” Blocking COX, especially COX-2, in the skin can reduce inflammation and pain and may help prevent skin cancer.
159 citations,
December 2007 in “American Journal of Pathology” Stress-related substance P may lead to hair loss and negatively affect hair growth.
155 citations,
May 2016 in “Nature communications” Memory T cells in the skin balance staying put and moving into the blood, clustering around hair follicles, and increasing in number after infection.
142 citations,
September 2020 in “Journal of neurophysiology” Young adults have about 230,000 tactile nerve fibers, decreasing 5-8% per decade with age.
137 citations,
June 2005 in “Climacteric” Estrogen loss during menopause worsens skin health, but hormone replacement therapy may improve it, though more research is needed.
134 citations,
December 2018 in “Dermatology and Therapy” Some vitamins and minerals like vitamin D and iron can help with certain types of hair loss, but more research is needed for others.
128 citations,
August 2015 in “Cell Stem Cell” Damage to skin releases dsRNA, which activates TLR3 and helps in skin and hair follicle regeneration.
121 citations,
March 1989 in “Journal of Investigative Dermatology” Minoxidil can help grow hair in mice by making cells grow and improving hair quality. More research needed.
120 citations,
October 2007 in “Clinical Interventions in Aging” Estrogens help reduce skin aging, and SERMs might offer similar benefits without the risks of hormone therapy.
115 citations,
November 2004 in “Brain Behavior and Immunity” Stress increases nerve fibers and immune cell activity in mouse skin, possibly worsening skin conditions.
111 citations,
March 2012 in “Expert Opinion on Drug Delivery” Liposomes could improve how skin care products work but are costly and not very stable.
110 citations,
July 2017 in “Immunology” Skin's Regulatory T cells are crucial for maintaining skin health and could be targeted to treat immune-related skin diseases and cancer.
106 citations,
December 2015 in “Journal of The American Academy of Dermatology” Correct skin biopsy techniques are crucial to avoid misdiagnosis of skin diseases.
106 citations,
March 2014 in “BioEssays” We need more research to better understand human hair follicle stem cells for improved treatments for hair loss and skin cancer.
101 citations,
January 1997 in “Journal of Investigative Dermatology Symposium Proceedings” Nerves and chemicals in the body can affect hair growth and loss.
98 citations,
December 2008 in “Journal of Investigative Dermatology” Prolactin affects hair growth and skin conditions, and could be a target for new skin disease treatments.
93 citations,
February 2015 in “Journal of Investigative Dermatology” Oxidative stress affects hair loss in men with androgenetic alopecia.
89 citations,
January 2009 in “Advances in Clinical Chemistry” Fetal skin heals without scarring due to unique cells and processes not present in adult skin healing.
88 citations,
August 2008 in “Development” BMP2 and BMP7 have opposite roles in feather formation.
85 citations,
July 2012 in “Cold Spring Harbor perspectives in biology” The skin protects the body and is constantly renewed by stem cells; disruptions can lead to cancer.
84 citations,
June 2013 in “Stem Cells Translational Medicine” New methods for skin and nerve regeneration can improve healing and feeling after burns.
84 citations,
July 2003 in “European journal of biochemistry” Mouse skin can produce and process serotonin, with variations depending on hair cycle, body location, and mouse strain.
82 citations,
September 2018 in “Nature Communications” A certain smell receptor in hair follicles can affect hair growth when activated by a synthetic sandalwood scent.
81 citations,
June 2012 in “European journal of human genetics” Inherited ichthyoses cause widespread skin scaling and thickening due to gene mutations.
76 citations,
January 2007 in “American Journal of Clinical Dermatology” Women with PCOS often have skin problems like excessive hair, acne, hair loss, and dark patches, which can be treated with hormonal and non-hormonal therapies.