June 2023 in “Journal of Pharmaceutical and Health Research” Caffeine hair tonic with 0.001% concentration was more effective in promoting hair growth on guinea pigs.
April 2022 in “Journal of applied science and environmental management” Alligator pepper seed extract improved wound healing in rats.
March 2020 in “The Egyptian Journal of Histology” Topical olive oil protects mice skin from harmful electromagnetic radiation.
January 2019 in “Advances in stem cells and their niches” Skin health and repair depend on the signals between skin stem cells and their surrounding cells.
April 2018 in “Journal of Investigative Dermatology” Mint water extract boosts protective enzymes in skin cells.
A woman had temporary hair loss due to stress from a spinal cord injury.
71 citations
,
September 2006 in “Cell Transplantation” Fetal skin cells from a cell bank heal wounds faster and with less scarring than adult cells.
40 citations
,
January 2009 in “Skin Pharmacology and Physiology” Fetal cells could improve skin repair with minimal scarring and are a potential ready-to-use solution for tissue engineering.
August 2024 in “International Journal of Health Science” Telogen Effluvium (TE) significantly affects women due to stress and hormonal changes, requiring better public health policies and mental health support.
June 2021 in “International Journal of Research in Medical Sciences & Technology” Hair loss has many causes and needs specific treatments.
Topical Minoxidil is effective for hair loss after COVID-19.
74 citations
,
May 2016 in “Current opinion in pediatrics, with evaluated MEDLINE/Current opinion in pediatrics” Both vitiligo and alopecia areata involve an immune response triggered by stress and specific genes, with treatments targeting this pathway showing potential.
51 citations
,
December 2017 in “Skin Appendage Disorders” Stress may trigger hair loss by affecting immune protection in hair follicles.
14 citations
,
May 2019 in “Experimental Dermatology” Fat tissue extract may help treat vitiligo by reducing cell stress and promoting skin repair.
December 2025 in “Neurobiology of Stress” People who recently attempted suicide during depression showed signs of adrenal fatigue, but had higher DHEA levels around the attempt time.
April 2025 in “Medical Journal of Babylon” Copeptin and cortisol levels are higher in alopecia areata patients, suggesting they could help diagnose and manage the condition.
New methods to classify curly hair types were developed based on shape and strength.
January 2017 in “International journal of clinical & experimental dermatology” Eating a balanced diet with vitamins, micronutrients, and antioxidants is important for hair health and can help with hair loss.
349 citations
,
January 2005 in “The FASEB journal” Human skin can make serotonin and melatonin, which help protect and maintain it.
286 citations
,
June 2012 in “Nature Immunology” Hair follicles help attract immune cells to the skin during stress.
252 citations
,
January 2008 in “Trends in Endocrinology and Metabolism” Melatonin in the skin helps protect against damage from stress and UV rays, and could be used to treat certain skin conditions.
152 citations
,
January 2004 in “Current anthropology” Humans lost body hair relatively recently in evolution.
151 citations
,
November 2018 in “International Journal of Pharmaceutics” Nanoparticles improve drug delivery through the skin but more research is needed on their long-term effects and skin penetration challenges.
150 citations
,
April 2013 in “Dermato-endocrinology” Estrogen therapy can reduce skin aging but has cancer risks.
109 citations
,
October 2007 in “Journal of pineal research” Melatonin helps regulate hair growth and protects the hair follicle from stress.
102 citations
,
January 2003 in “Dermatology” Smoking may contribute to hair loss in men.
80 citations
,
April 2018 in “Trends in Molecular Medicine” Lichen Planopilaris and Frontal Fibrosing Alopecia may help us understand hair follicle stem cell disorders and suggest new treatments.
66 citations
,
May 2014 in “Conservation Physiology” Grizzly and black bears have different stress and hormone responses to salmon availability, influenced by nutrition and social competition.
62 citations
,
July 2018 in “Lasers in Medical Science” LED therapy is safe and shows potential for treating skin conditions and promoting hair growth, but more research is needed.
62 citations
,
March 2011 in “European journal of endocrinology” Some parents have a mild form of congenital adrenal hyperplasia without symptoms, and they usually don't need treatment.