5 citations
,
March 2009 in “Skin Pharmacology and Physiology” DNA flow cytometry effectively evaluates how different conditions affect hair growth cell activity.
February 1990 in “PubMed” Higher DHEA-S levels in hirsute females affect hair growth phases.
November 2025 in “Journal of Clinical Medicine” The drinkable supplement reduced hair shedding and increased hair growth in women.
17 citations
,
October 2003 in “Brazilian Journal of Medical and Biological Research” The gene SDR5A1 is found in scalp hair of both hirsute and normal individuals, but it does not explain differences in hair growth.
9 citations
,
August 2023 in “Journal of Investigative Dermatology” IL-15 helps hair grow longer and stronger by extending the growth phase and reducing cell death.
3 citations
,
January 2019 in “Journal of Cutaneous and Aesthetic Surgery” Scalp and beard hair survive best in hair transplants, but the procedure needs high skill and takes longer.
The human scalp has different types of pigment cells in hair follicles with varying abilities to produce pigment.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Estetrol may help prevent hair loss and promote hair growth in women.
October 2023 in “Journal of the Endocrine Society” Estetrol helps keep scalp hair in the growth phase longer and improves hair follicle health by affecting the hair root and increasing stem cells.
August 2023 in “International Journal of Molecular Sciences” The human scalp hair bulb contains different types of melanocytes with varying abilities to produce melanin.
November 2022 in “Journal of Investigative Dermatology” Butyrate helps hair grow longer, improves hair cell health, increases pigment production, and boosts hair's natural defenses.
April 2023 in “Journal of Investigative Dermatology” ALRN-6924 can protect hair follicles from chemotherapy damage by temporarily stopping cell division.
January 2025 in “British Journal of Dermatology” Long scalp hair evolved for cooling and social signaling.
24 citations
,
January 2006 in “Skin Pharmacology and Physiology” Finasteride reverses early hair loss and promotes growth.
November 2022 in “Journal of Investigative Dermatology” Growth hormone-releasing hormone (GHRH) boosts hair growth and human scalp hair follicles have their own growth hormone system.
July 2016 in “Indian journal of science and technology” Neonate scalp hair is thinner, lacks a medulla, and has smaller follicles compared to adult hair.
33 citations
,
September 2019 in “Dermatologic Surgery” Using a special stem cell formula on the scalp once a month for six months helped people with hair loss grow more hair.
1 citations
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February 2023 in “Siriraj Medical Journal/San Sirirat” Thai males with hair loss have lower hair density in the occipital scalp compared to other Asians.
January 2023 in “Frontiers in bioscience” Artemis protein may help control hair growth and health by influencing cell processes.
1 citations
,
February 1988 in “The BMJ” The document explains different hair and scalp conditions, including common hair loss after pregnancy or illness, drug-induced hair loss, hereditary excessive hair growth, patterned baldness, autoimmune hair loss, and permanent loss due to skin disease, with generally limited treatment options.
54 citations
,
June 1985 in “American Journal of Dermatopathology” Minoxidil helps grow longer, thicker hair in bald scalps of stumptailed macaques, and early treatment is more effective.
53 citations
,
January 2007 in “Dermatology” Chemotherapy often causes patterned hair loss, with some scalp areas more resistant to hair loss than others.
43 citations
,
August 2013 in “Pediatric Dermatology” Trichoscopy is good for diagnosing and monitoring hair and scalp problems in children but needs more research for certain conditions.
24 citations
,
September 2012 in “Dermatologic Surgery” The conclusion is that normal scalp hair counts for Taiwanese people were established, showing age-related differences but not sex or scalp location differences.
October 2024 in “Experimental Dermatology” The belief about hair shedding phases is likely incorrect and needs reevaluation.
1 citations
,
April 2016 in “Journal of The American Academy of Dermatology” The study concludes that Loose Anagen Hair Syndrome is a benign condition that usually improves with age but can be hard to diagnose and stressful for the family.
11 citations
,
September 2021 in “Skin Appendage Disorders” Hair count values should be standardized for each scalp region to evaluate hair disorders in Asians.
7 citations
,
March 2023 in “Journal of Investigative Dermatology” Low-intensity ultrasound may help protect hair follicles from chemotherapy-induced hair loss.
234 citations
,
December 1996 in “Journal of The American Academy of Dermatology” Middle-aged women with chronic telogen effluvium experience increased hair shedding but usually don't get significantly thinner hair.
11 citations
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November 2015 in “Skin Research and Technology” Women's hair grows faster and thicker than men's, but hair growth slows for both genders with pattern hair loss.