16 citations,
October 2019 in “Biological & Pharmaceutical Bulletin” Houttuynia cordata extract may help hair grow by improving cell survival and increasing cell growth.
11 citations,
October 2015 in “Clinical and Experimental Dermatology” Sophora flavescens extract helps hair growth and treats hair loss.
6 citations,
January 2016 in “Annals of Dermatology” Human hair contains more glycosaminoglycans in children than adults, and these compounds decrease with age, possibly affecting hair thickness.
96 citations,
April 2007 in “Journal of Investigative Dermatology” Grafted rodent and human cells can regenerate hair follicles, but efficiency decreases with age.
56 citations,
July 2005 in “Experimental Dermatology” Injected human hair follicle cells can create new, small hair follicles in skin cultures.
54 citations,
January 2018 in “Scientific reports” Human hair contains diverse proteins, including keratins and histones, which could help assess hair health and aging.
52 citations,
August 1978 in “Journal of Applied Polymer Science” Human hair's ability to get wet is complex and can change with treatments, damage, and environment.
47 citations,
June 1996 in “International Journal of Legal Medicine” Hair analysis for drugs needs a better understanding of how drugs enter hair, considering factors like hair structure and pigmentation.
38 citations,
April 2016 in “Experimental Dermatology” The document concludes that understanding hair follicle cell cycles is crucial for hair growth and alopecia research, and recommends specific techniques and future research directions.
38 citations,
October 2011 in “Analytical biochemistry” Hair proteins have weak spots in their α-helical segments.
36 citations,
October 1996 in “Dermatologic Clinics” Mice are useful for researching human hair loss and testing treatments, despite some differences between species.
31 citations,
August 2019 in “Regenerative Medicine” Human placenta hydrogel helps restore cells needed for hair growth.
30 citations,
April 2018 in “Experimental Dermatology” The article concludes that developing in vitro models for human hair structures is important for research and reducing animal testing, but there are challenges like obtaining suitable samples and the models' limitations.
27 citations,
November 2005 in “Archives of Dermatological Research” Choosing hair follicles at the same growth stage leads to more consistent hair growth experiments.
24 citations,
November 2015 in “Scientific reports” Human hair has a new region with ordered filaments and the cuticle contains β-keratin sheets.
18 citations,
August 2014 in “Lipids” Human hair has more unsaturated fats inside than on the surface, and certain lipids may help bind the outer and inner layers together.
8 citations,
November 2022 in “International Journal of Cosmetic Science” Human hair varies widely and should be classified by curl type rather than race.
7 citations,
December 2020 in “ACS biomaterials science & engineering” Human hair keratins can form stable nanofiber networks that might help in tissue regeneration.
7 citations,
June 2021 in “Amino acids” Human hair protein modifications could potentially indicate heart disease risk.
3 citations,
February 2019 in “Journal of Cosmetic Dermatology” The effects of estrogen on human scalp hair growth are unclear and need more research.
2 citations,
January 2020 in “Methods in molecular biology” Scientists created early-stage hair follicles from human skin cells, which could help treat baldness and study hair growth.
Keratin hydrogels from human hair show promise for tissue engineering and regenerative medicine.
January 2021 in “Journal of cosmetology & trichology” Ageratum conyzoides L. extract may effectively and safely treat hair loss.
Human hair keratins can self-assemble and support cell growth, useful for biomedical applications.
256 citations,
October 2013 in “Proceedings of the National Academy of Sciences of the United States of America” Growing human skin cells in a 3D environment can stimulate new hair growth.
106 citations,
March 2014 in “BioEssays” We need more research to better understand human hair follicle stem cells for improved treatments for hair loss and skin cancer.
87 citations,
July 2009 in “The journal of investigative dermatology/Journal of investigative dermatology” Human beard hair medulla contains a unique and complex mix of keratins not found in other human tissues.
62 citations,
February 2016 in “ACS Applied Materials & Interfaces” Technique creates 3D cell spheroids for hair-follicle regeneration.
47 citations,
July 1967 in “Science” Not eating enough protein can cause hair roots to shrink and lose color, and hair to become thinner.
42 citations,
February 2017 in “Scientific Reports” Researchers found a way to create cells from stem cells that act like human cells important for hair growth and could be used for hair regeneration treatments.