166 citations
,
August 2010 in “Proceedings of the National Academy of Sciences of the United States of America” Scientists found a new, less invasive way to study body clocks using hair cells, which shows shift workers' body clocks don't match their lifestyles.
19 citations
,
March 2021 in “Obesity surgery” Many people experience hair loss after weight loss surgery, especially younger women, and it's linked to lower levels of zinc, folic acid, and ferritin.
9 citations
,
July 2020 in “Journal of Animal Physiology and Animal Nutrition” Melatonin given to pregnant rabbits improved their babies' fur quality.
4 citations
,
August 2025 in “Scientific Reports” Hair analysis can effectively detect diabetes and aging markers.
3 citations
,
February 2019 in “Journal of Cosmetic Dermatology” The effects of estrogen on human scalp hair growth are unclear and need more research.
April 2026 in “Al-Kufa University Journal for Biology” Finasteride lowers cortisol and raises testosterone levels in rats.
April 2025 in “Journal of the Faculty of Medicine Baghdad” Alopecia areata patients may have higher T3 and cortisol levels, suggesting a hormonal link.
January 2026 in “Journal of Epidemiology” Severe hair loss is linked to higher risks of hypertension and diabetes, especially in younger adults and women.
21 citations
,
October 2011 in “PloS one” Certain molecules in hair change with age and could be used for cosmetic treatments.
10 citations
,
September 2020 in “Metabolites” Hair color and length affect metabolite profiles in hair, so they should be considered in hair analysis.
3 citations
,
March 2021 in “Metabolites” Hair loss causes differ between men and women due to changes in hormone levels and inflammation-related pathways.
2 citations
,
August 2020 in “Natural Product Communications” A mix of Platycladus orientalis leaf extract and alpha-terpineol helps mice grow hair by increasing growth factors and cell growth.
July 2024 in “Annals of Phytomedicine An International Journal” Herbal ingredients like aloe vera and hibiscus can help with hair problems like hair loss and dandruff.
Forensic hair analysis for drugs is now more reliable and accurate.
218 citations
,
January 2013 in “The Lancet Oncology” Chemotherapy causes hair loss by damaging hair follicles and stem cells, with more research needed for prevention and treatment.
159 citations
,
December 2007 in “American Journal of Pathology” Stress-related substance P may lead to hair loss and negatively affect hair growth.
130 citations
,
August 2015 in “Experimental Dermatology” Human hair follicle organ culture is a useful model for hair research with potential for studying hair biology and testing treatments.
125 citations
,
September 2001 in “The FASEB Journal” Stress can cause hair loss by negatively affecting hair follicles and this effect might be reversed with specific treatments.
109 citations
,
October 2007 in “Journal of pineal research” Melatonin helps regulate hair growth and protects the hair follicle from stress.
100 citations
,
September 2017 in “Molecular and Cellular Endocrinology” Male hormones and their receptors play a key role in hair loss and skin health, with potential new treatments being explored.
98 citations
,
July 2014 in “Trends in Molecular Medicine” Hair follicles are hormone-sensitive and involved in growth and other functions, with potential for new treatments, but more research is needed.
98 citations
,
February 2007 in “Seminars in Cell & Developmental Biology” Androgens can both stimulate and cause hair loss, and understanding their effects is key to treating hair disorders.
86 citations
,
June 2017 in “Stem cell investigation” Stem cells from hair follicles can safely treat hair loss.
71 citations
,
October 2008 in “The journal of investigative dermatology/Journal of investigative dermatology” HFMs can help study hair growth and test potential hair growth drugs.
71 citations
,
May 2007 in “The FASEB journal” Human hair follicles produce and respond to erythropoietin, helping protect against stress.
56 citations
,
November 2010 in “Pigment Cell & Melanoma Research” Brain hormones significantly affect hair color and could potentially be used to prevent or reverse grey hair.
46 citations
,
January 1996 in “Journal of The American Academy of Dermatology” People with late-stage HIV-1 often experience a specific type of hair loss linked to multiple factors, including nutritional issues and immune responses.
42 citations
,
March 2008 in “Molecular and Cellular Endocrinology” Hormones and neuroendocrine factors control hair growth and color, and more research could lead to new hair treatment options.
42 citations
,
March 2006 in “Drug Discovery Today: Therapeutic Strategies” The conclusion is that we need more effective hair loss treatments than the current ones, and these could include new drugs, gene and stem cell therapy, hormones, and scalp cooling, but they all need thorough safety testing.
29 citations
,
September 2012 in “Dermatologic Clinics” Hair disorders are caused by a complex mix of biology, genetics, hormones, and environmental factors, affecting hair growth and leading to conditions like alopecia.