October 2017 in “The Japanese Biochemical Society/The Molecular Biology Society of Japan” Some natural compounds might help hair grow.
November 2019 in “Harper's Textbook of Pediatric Dermatology” Understanding normal hair growth and loss in children is key to diagnosing and treating hair disorders.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Damaged hair follicle stem cells may leave the skin to help maintain youthfulness.
January 2023 in “Springer eBooks” Hair shedding that lasts over 6 months may need a closer look, but often just reassurance is enough.
40 citations
,
February 1990 in “Journal of The American Academy of Dermatology” A 17-year-old developed woolly hair nevus in adolescence, which is unusual, and over time the hair darkened and straightened slightly, but microscopic changes persisted.
99 citations
,
January 2004 in “Progress in brain research” Neurotrophins are important for hair growth and could help treat hair loss.
May 2025 in “International Journal of Trichology” Partially bald areas in Indian AGA patients still have hair growth cells, suggesting early treatment is best.
8 citations
,
October 2017 in “Dermatology practical & conceptual” A spermidine-based supplement may help hair grow longer by keeping it in the growth phase.
January 2024 in “Biological & pharmaceutical bulletin” Panax ginseng extract helps human hair grow by encouraging growth phase transition and cell proliferation while reducing certain protein expression.
8 citations
,
January 1989 in “PubMed” Minoxidil did not affect hair growth in newborn mice.
11 citations
,
June 2005 in “Postgraduate Medical Journal” Some infants temporarily grow scrotal hair, which usually disappears on its own without any health issues.
46 citations
,
May 1986 in “Seminars in Reproductive Medicine” Testosterone and dihydrotestosterone affect hair growth, and new techniques like the folliculogram help study it, but fully understanding hair growth is still complex.
2 citations
,
December 1995 in “Pediatrics” Infant hair loss is usually temporary and grows back without treatment.
359 citations
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January 2015 in “Cold Spring Harbor Perspectives in Medicine” Hair growth phase and certain genes can speed up wound healing, while an inflammatory mediator can slow down new hair growth after a wound. Understanding these factors can improve tissue regeneration during wound healing.
18 citations
,
March 2016 in “Journal of Investigative Dermatology” Vitamin D and calcium are essential for normal hair growth.
26 citations
,
March 1986 in “Clinical and Experimental Dermatology” Scalp hair grows at 0.37 mm/day, forearm hair at 0.18 mm/day, and thigh hair at 0.30 mm/day, with no significant differences found in people with certain hair conditions.
January 2025 in “bioRxiv (Cold Spring Harbor Laboratory)” Rhamnose may help hair growth and pigmentation, making it a potential treatment for hair loss.
Hair loss is caused by hormonal changes that shorten hair growth phases and shrink hair follicles.
April 2026 in “International Journal of Research in Pharmacology & Pharmacotherapeutics” Plant compounds may help hair growth and improve alopecia treatments.
4 citations
,
January 2011 in “Cell stem cell” Hair follicle stem cells can return to their original niche and help regenerate hair.
March 2016 in “Experimental Dermatology” EGFR helps hair follicles transition properly by controlling Stathmin levels.
1 citations
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March 2010 in “CRC Press eBooks” Some hair care products may improve hair growth and appearance, and botanicals can also help remove unwanted hair.
November 2013 in “Institutional Repositories DataBase (IRDB)” Gamma-ray exposure during hair rest phase harms hair growth and color in mice.
5 citations
,
September 2023 in “Pediatric Research” December 2016 in “Clinics in surgery” Understanding hair follicle biology and stem cell control can help develop treatments to stimulate hair growth for cosmetic procedures.
2 citations
,
December 2023 in “Royal Society of Chemistry eBooks” Hair is a complex organ, and understanding its detailed structure and growth phases is crucial for analyzing substances within it.
Hair growth is maintained by specific cell signals.
34 citations
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December 2000 in “The journal of investigative dermatology/Journal of investigative dermatology” Rat vibrissa follicles are useful for studying hair growth cycles, especially the transition from pro-anagen to anagen.
April 2017 in “Journal of Investigative Dermatology” Early and late matrix progenitors in hair follicles create different cell layers, with early ones forming the companion layer and later ones forming the inner root sheath and hair shaft.