128 citations
,
January 1996 in “Journal of analytical toxicology.” Hair analysis can detect cocaine use but doesn't accurately show the amount or timing of use.
116 citations
,
May 2013 in “Proceedings of the National Academy of Sciences of the United States of America” Hair grows faster in the morning and is more vulnerable to damage from radiation due to the internal clock in hair follicle cells.
98 citations
,
December 2003 in “The FASEB Journal” Thymosin β4 promotes hair growth by activating stem cells in hair follicles.
94 citations
,
September 2014 in “Therapeutic Delivery” Nanoparticles can improve skin treatments by better targeting hair follicles, but more research is needed for advancement.
87 citations
,
March 2011 in “Australasian Journal of Dermatology” Genetics and hormones play a role in male and female hair loss, but more research is needed to fully understand it.
86 citations
,
August 2014 in “Journal of The American Academy of Dermatology” To diagnose hair loss, use a systematic approach including history, exams, and tests.
78 citations
,
October 2012 in “Biomaterials” Larger spheroids improve hair growth, but size doesn't guarantee thicker hair.
76 citations
,
March 2005 in “Journal of Molecular Medicine” Certain mice without specific receptors or mast cells don't lose hair from stress.
74 citations
,
September 2006 in “Cell Cycle” The HR protein's role as a repressor is essential for controlling hair growth.
74 citations
,
January 1998 in “Dermatology” Men who think they are losing hair feel worse about themselves, especially if they are younger.
72 citations
,
October 2010 in “Journal of The American Academy of Dermatology” Iron deficiency common in women, not always linked to hair loss; more research needed.
68 citations
,
August 2014 in “Stem Cells Translational Medicine” Dermal papilla cells help wounds heal better and can potentially grow new hair.
67 citations
,
August 2013 in “International Journal of Cosmetic Science” Hair greying is caused by oxidative stress damaging hair follicles and melanocytes.
65 citations
,
July 2006 in “Journal of biological chemistry/The Journal of biological chemistry” The gene Foxq1, controlled by Hoxc13, is crucial for hair follicle differentiation.
60 citations
,
July 2011 in “Stem Cells and Development” Certain signals and genes play a key role in hair growth and regeneration, and understanding these could lead to new treatments for skin regeneration.
56 citations
,
June 2015 in “Nature Protocols” Two-photon microscopy helps observe hair follicle stem cell behaviors in mice.
52 citations
,
May 2003 in “The journal of investigative dermatology/Journal of investigative dermatology” Parathyroid hormone-related protein helps control hair growth phases in mice.
48 citations
,
December 2004 in “Differentiation” Tooth papilla cells can help regenerate hair follicles and grow hair.
47 citations
,
January 2013 in “International Journal of Cosmetic Science” Hair diversity is influenced by complex genetics and environmental factors, requiring more research for practical solutions.
46 citations
,
January 2020 in “Theranostics” Injecting a special gel with human protein particles can help hair grow.
45 citations
,
December 1991 in “Annals of the New York Academy of Sciences” ECM molecules are crucial for hair growth and development.
44 citations
,
June 2018 in “Journal of Cellular Physiology” Researchers developed a 3D model of human hair follicle cells that can help understand hair growth and test new hair loss treatments.
42 citations
,
January 2017 in “Stem cells international” Adding hyaluronic acid helps create larger artificial hair follicles in the lab.
41 citations
,
July 2015 in “Current Drug Discovery Technologies” Some plants may help with hair growth and have fewer side effects than synthetic drugs, but more research is needed to confirm their effectiveness.
41 citations
,
November 2013 in “Experimental Dermatology” Leptin, a hormone, is important for starting hair growth.
39 citations
,
October 2013 in “Plastic and Reconstructive Surgery” Human alpha defensin 5 helps heal wounds, reduce bacteria, and grow hair on burned skin.
39 citations
,
September 2013 in “Journal of Cosmetic Dermatology” Herbs can potentially treat hair loss by inhibiting a key enzyme and promoting hair growth, and deficiencies in zinc, biotin, and iron are linked to hair loss.
39 citations
,
September 2011 in “Tissue Engineering Part B-reviews” Hair follicle regeneration in skin grafts may be possible using stem cells and tissue engineering.
36 citations
,
February 2018 in “British Journal of Dermatology” Sweat glands and hair follicles are structurally connected within a specific layer of skin fat.
35 citations
,
February 2015 in “Experimental Dermatology” Cells from the base of hair follicles help blood vessel cells survive and grow, which is important for healthy hair.