Knocking out the FGF5 gene in sheep increased wool production and hair-follicle density.
Procyanidins and phosphatidic acids help promote hair growth.
2 citations
,
April 2019 in “Experimental Dermatology” Hair follicles respond differently to pulling forces in various regions.
13 citations
,
March 2010 in “International Journal of Cosmetic Science” Hair coloring increases copper and calcium uptake, damaging hair and reducing shine.
October 2025 in “Records of Natural Products” Kaempferol promotes hair growth and could be a natural treatment for hair loss.
April 2018 in “The journal of investigative dermatology/Journal of investigative dermatology” Blue light can help hair grow by affecting certain receptors in hair follicles.
38 citations
,
June 2003 in “Journal of Investigative Dermatology Symposium Proceedings” Accurate clinical, histological, and genetic methods are key for understanding and treating hair disorders.
AMPLEX PLUS may reduce hair loss and promote new hair growth.
7 citations
,
January 1973 in “Calcified Tissue International” Hair follicle tissue can induce mineral formation, likely due to a potent nucleator.
January 2010 in “Journal of Yangzhou University” Sulfated fucans promote hair growth in mice by speeding up the growth phase and delaying the rest phase.
82 citations
,
November 1959 in “Annals of the New York Academy of Sciences” March 2025 in “Digital Library of Theses and Dissertations (Universidade de São Paulo)” Ferulic acid and resveratrol protect hair from chemical and sun damage.
2 citations
,
December 2013 in “Journal of Cosmetic Dermatology” UV treatment can damage hair, so protection is advised.
January 2025 in “International Journal of Cosmetic Science” Citric acid strengthens and improves damaged hair.
November 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” The study found markers indicating that cells responsible for hair color are differentiating in specific areas of the hair follicle.
41 citations
,
January 2018 in “Advances in experimental medicine and biology” 450 citations
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January 2005 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair color is determined by melanin produced and transferred in hair follicles.
11 citations
,
January 2000 in “Journal of cosmetic science” Hydrolyzed wheat proteins penetrate all hair types effectively.
4 citations
,
January 1981 in “PubMed” Hair medullary cells in mammals vary in complexity, with humans having more structured cells similar to inner root sheath cells.
13 citations
,
January 2001 in “Pediatric dermatology” A dark-haired Chinese girl had hair that looked banded under certain light but was normal under a microscope.
February 2021 in “Journal of The American Academy of Dermatology” Fibrosis in the bulge area of hair follicles can cause hair thinning in male pattern baldness, and drugs that inhibit fibrosis might help reverse this.
1 citations
,
June 2013 in “Science-business Exchange” Increasing the levels of a protein called FGF9 can promote hair growth, but humans may not respond the same way due to a lack of certain cells.
7 citations
,
November 2004 in “International Journal of Cosmetic Science” Hair breaks differently when wet or dry and is affected by its condition and treatments like perms and bleaching.
3 citations
,
June 2016 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” A patient with hair loss condition grew excessive hair in areas covered by a cast.
3 citations
,
November 2011 in “European Journal of Dermatology” 4-O-methylhonokiol from Magnolia officinalis significantly promotes hair growth.
29 citations
,
April 2020 in “Biomolecules” The 3D scaffold helped maintain hair cell traits and could improve hair loss treatments.
January 2010 in “EPub Bayreuth (University of Bayreuth)” Polyquaternium-87 reduces hair friction the most among tested polymers.
61 citations
,
October 1996 in “Development” Hair growth can be stimulated by combining certain skin cells, which can rejuvenate old cells and cause them to specialize in hair follicle creation.
1 citations
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April 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” Polyamines are important in deciding hair follicle stem cell behavior, affecting hair growth and loss.