4 citations
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August 2021 in “Pediatric dermatology” Biotin, alone or with minoxidil, effectively treats short anagen syndrome.
June 2011 in “European Journal of Pediatric Dermatology” An 11-year-old girl with hair thinning was diagnosed with monilethrix and early androgenetic alopecia.
Collagen peptides may help maintain hair growth and could be beneficial for hair loss conditions.
2 citations
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January 2020 in “International Journal of Cosmetic Science” Niacinamide does not promote hair growth.
January 2025 in “International Journal of Trichology” Loose anagen hair syndrome in children often resolves on its own.
2 citations
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September 1978 in “Anatomia Histologia Embryologia” Alkaline phosphatase activity in Beagle dog hair follicles is weakest in anagen and strongest in telogen.
2 citations
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August 2018 in “Korean Journal of Plant Resources” Oregonin from Alnus japonica may help prevent hair loss and promote hair growth.
10 citations
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May 2010 in “Journal of The American Academy of Dermatology” A 38-year-old African American woman has a rare condition that prevents her from growing long hair.
23 citations
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July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Certain chemicals and peptides can promote hair growth or prevent baldness.
Yonnyuniksoogobon-dan, an herbal mix, was found to promote hair growth in mice.
November 2025 in “Biomacromolecules” Nanochitins, especially DNCh and PNCh, effectively promote hair growth.
1 citations
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August 2019 A 25% ethanol extract hair tonic from Nothopanax scutellarium leaves significantly boosts hair growth in male rabbits.
130 citations
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January 1994 in “Differentiation” Mouse hair follicle cells briefly grow during the early hair growth phase, showing that these cells are important for starting the hair cycle.
8 citations
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April 2017 in “Journal of The Royal Society Interface” Giant axonal neuropathy changes the structure of keratin in human hair.
Nano-liposome-bound EGF can delay hair growth in rats.
Giant axonal neuropathy changes the structure of keratin in human hair, making it stiffer and stronger.
9 citations
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January 1998 in “Studia Anglica Posnaniensia: international review of English Studies” Wound-induced hair growth may help study regeneration and aging, but it's unclear if this ability decreases with age.
18 citations
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October 2018 in “Nutrients” Annurca apple extract promotes hair growth by changing hair follicle metabolism to boost keratin production.
12 citations
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March 2018 in “Australasian Journal of Dermatology” Minoxidil treatment can reduce hair shedding, increase hair volume, and even change hair color in patients with loose anagen hair syndrome.
5 citations
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July 2010 in “Archives of Internal Medicine” Prostaglandins may protect hair follicles during chemotherapy.
28 citations
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May 2012 in “Veterinary Dermatology” Different types of dog hair loss are linked to problems starting the hair growth phase and early hair cycle ending.
4 citations
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May 2017 in “Pediatric Dermatology” The study found that Short Anagen Syndrome results in short hair growth not due to hair fragility, and hair may grow longer after puberty.
13 citations
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December 2017 in “The journal of investigative dermatology/Journal of investigative dermatology” Nicotinamide applied to the scalp can slow down hair growth.
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.
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.
Ashwagandha-derived nanoparticles can promote human hair growth.
5 citations
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October 2012 in “CMAJ. Canadian Medical Association journal” The girl had harmless hair casts, not lice.
6 citations
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February 2016 in “American Journal of Dermatopathology” The boy with woolly hair nevus had thinner hair and abnormal hair follicles, which improved with treatment but worsened when treatment stopped.
29 citations
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January 2021 in “Journal of nanobiotechnology” Tiny particles from brain cells help hair grow by targeting a specific hair growth pathway.
1 citations
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July 2017 in “Skin appendage disorders” A 9-year-old Hispanic girl has Uncombable Hair Syndrome, which may improve with age and biotin treatment.