August 2006 in “Experimental dermatology” Human scalp hair follicles can produce and respond to several hormones, affecting hair growth and pigmentation.
February 2021 in “Dermatologic Therapy” Injections improve hair growth, density, and thickness in women safely.
90 citations
,
October 1996 in “Dermatologic Clinics” Growth factors are crucial for hair development and could help treat hair diseases.
34 citations
,
January 1943 in “Endocrinology” Adrenalectomy boosts hair growth and melanin in black rats, even with vitamin B¹ deficiency.
7 citations
,
September 2017 in “Scientific Reports” Mice with too much sPLA₂-IIA have hair loss and poor wound healing due to abnormal hair growth and stem cell depletion.
6 citations
,
June 2022 in “Frontiers in Bioengineering and Biotechnology” The gel with icariin speeds up wound healing, reduces scarring, and helps hair growth by controlling BMP4 signaling. It also reduces inflammation and improves wound quality in mice, adapts to different wound shapes, and gradually releases icariin to aid healing. It also prevents too much collagen and myofibroblast formation during skin healing.
4 citations
,
November 2021 in “Frontiers in Cell and Developmental Biology” Aging causes hair loss and graying due to stem cell decline and changes in cell behavior and communication.
December 2025 in “Advanced Healthcare Materials” The composite helps hair growth and scalp healing by reducing stress and inflammation.
July 2025 in “Journal of Investigative Dermatology” Miniaturized hair follicles in androgenetic alopecia show abnormal mitochondrial activity and damage.
June 2024 in “Benha Journal of Applied Sciences” β1 integrin may indicate and influence the severity of hair loss in androgenetic alopecia.
October 2021 in “Journal of Investigative Dermatology” DPP4, a molecule in skin, helps heal large wounds and regrow hair follicles when its levels are reduced.
May 2019 in “Journal of Clinical Dermatology” Metformin helps hair growth by affecting cell signals related to hair follicle development.
June 2017 in “Mechanisms of development” Hox genes control hair follicle stem cell regeneration in different body regions.
September 1997 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” The document concludes that treatments like oral anti-androgens, minoxidil, and topical spironolactone can be effective for hair loss in men and women.
19 citations
,
January 2010 in “International Journal of Ayurveda Research” Tectona grandis Linn. seeds extract improved hair growth in mice better than minoxidil.
15 citations
,
December 2011 in “Journal of the European Academy of Dermatology and Venereology” Hair loss in systemic lupus erythematosus patients is unique and improves with treatment.
April 2023 in “Journal of Investigative Dermatology” Higher PD-1 levels are linked to fewer immune cells in hair follicles in alopecia areata.
A woman had temporary hair loss due to stress from a spinal cord injury.
19 citations
,
January 2015 in “Current problems in dermatology” Ultraviolet rays damage hair, smoking may cause hair loss, and good nutrition is important for hair health, but genetics mainly decide hair thickness.
November 2025 in “Discover Pharmaceutical Sciences” The essential oils nanoemulsion promotes hair growth better than 2% minoxidil in mice.
2 citations
,
May 2020 in “Anais brasileiros de dermatologia/Anais Brasileiros de Dermatologia” The study found that specific proteins are markers of hair follicle development in human fetuses.
277 citations
,
February 2013 in “Science Signaling” Mitochondrial reactive oxygen species are essential for skin and hair development.
142 citations
,
June 2003 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” Hair follicle stem cells can generate all hair cell types, skin, and sebaceous glands.
141 citations
,
May 2007 in “Cancer Research” CD34 is crucial for skin tumor development in mice.
139 citations
,
July 1991 in “Journal of The American Academy of Dermatology” Understanding hair follicle anatomy helps diagnose hair disorders.
127 citations
,
December 2007 in “Journal of Investigative Dermatology” Mice hair growth patterns get more complex with age and can change with events like pregnancy or injury.
99 citations
,
January 2004 in “Progress in brain research” Neurotrophins are important for hair growth and could help treat hair loss.
76 citations
,
March 2005 in “Journal of Molecular Medicine” Certain mice without specific receptors or mast cells don't lose hair from stress.
75 citations
,
March 2014 in “Journal of Investigative Dermatology” Aging mice have slower hair regeneration due to changes in signal balance, but the environment, not stem cell loss, controls this, suggesting treatments could focus on environmental factors.
55 citations
,
October 1992 in “Archives of Dermatology” Loose Anagen Hair Syndrome is a hereditary condition causing hair loss in children due to abnormal hair follicles.