February 2026 in “Brazilian Journal of Implantology and Health Sciences” Chronic stress and high cortisol levels can cause hair loss by disrupting hair growth.
49 citations
,
January 1998 in “International Journal of Molecular Medicine” Lipid peroxides can cause early hair loss by damaging hair follicles.
4 citations
,
December 2020 in “Journal of Dermatology” Impaired autophagy may cause hair loss by triggering early catagen.
24 citations
,
January 2003 in “Journal of Investigative Dermatology” Blocking a specific receptor slows down hair loss in mice.
91 citations
,
May 2003 in “American Journal of Pathology” Prolactin affects hair growth cycles and can cause early hair follicle regression.
64 citations
,
March 2005 in “Journal of Investigative Dermatology” Brain-Derived Neurotrophic Factor (BDNF) slows down hair growth and promotes hair follicle regression.
14 citations
,
January 2015 in “Genetics and molecular research” The transition from growth to regression in Cashmere goat hair follicles involves changes in expression of genes related to keratin and cell differentiation.
3 citations
,
November 2022 in “Frontiers in molecular biosciences” Plasmalogens activate a channel in cells that may stimulate hair growth.
November 2021 in “Research, Society and Development” Individualized treatment and psychological support are crucial for alopecia.
May 2023 in “Frontiers in chemistry” Zolpidem shows up in hair from the top back of the head after one dose and fades over time, suggesting it gets into hair through blood and sweat.
February 2024 in “Recima21” Covid-19 can cause hair loss due to immune and psychological factors.
33 citations
,
September 2017 in “Molecules” Red ginseng oil and its components help promote hair regrowth and could treat hair loss.
5 citations
,
January 2021 in “Biomedicine & Pharmacotherapy” Policosanol helps treat hair loss by balancing hormones and supporting hair growth.
2 citations
,
November 2018 in “Medunab” Low ferritin levels are linked to chronic hair loss in women.
53 citations
,
January 2009 in “Journal of Investigative Dermatology” UVB radiation harms hair growth and health, causing cell death and other changes in human hair follicles.
39 citations
,
August 2018 in “Scientific reports” Claudin-1 is important for the barrier function and growth of hair.
41 citations
,
September 2003 in “Journal of Investigative Dermatology” Overexpression of COX-2 causes early hair loss in mice, but can be prevented with a COX-2 inhibitor.
15 citations
,
May 2020 in “BMC complementary medicine and therapies” Polygonum multiflorum extract helps hair grow longer and fights the effects of hormones that cause hair loss.
1 citations
,
August 2016 in “Journal of Investigative Dermatology” Activating STAT5 in the skin's dermal papilla is key for starting hair growth, regenerating hair follicles, and healing wounds.
August 2016 in “Journal of Investigative Dermatology” The enzyme CD73 helps control human hair growth and could be targeted to treat hair growth disorders.
August 2016 in “Journal of Investigative Dermatology” Human hair follicles have a scent receptor that can influence hair growth.
109 citations
,
December 1998 in “The Journal of Dermatology” Manipulating the catagen and telogen phases of hair growth could lead to treatments for hair disorders.
71 citations
,
June 2001 in “American Journal of Pathology” The p53 protein helps control hair follicle shrinking by promoting cell death in mice.
April 2016 in “Journal of Investigative Dermatology” Blocking Prostaglandin D₂ (PGD₂) could help treat hair loss.
166 citations
,
July 1999 in “American Journal Of Pathology” The hairless (hr) gene is essential for normal hair follicle function and its mutation leads to hair loss.
132 citations
,
September 2009 in “Experimental Dermatology” A reliable system was developed to distinguish hair growth stages, aiding in identifying hair growth promoters or inhibitors.
23 citations
,
July 1982 in “International Journal of Dermatology” The review concludes that accurate diagnosis of different types of hair loss requires proper biopsy techniques and understanding the hair growth cycle and underlying causes.
22 citations
,
July 2019 in “PLOS ONE” Skin lymphatic vessels are essential for hair growth.
16 citations
,
April 2015 in “Lasers in Surgery and Medicine” Using a fractional laser can stimulate hair growth, but the intensity and duration of inflammation are crucial. Too much can cause ulcers and scarring. Lower beam energy and fewer treatments are recommended to avoid damage.
12 citations
,
June 2006 in “Anais Brasileiros de Dermatologia” The study found average numbers for different types of hair follicles in the scalp and observed differences between men and women, suggesting reasons for more common hair shedding in women.