Malnourished people have weaker hair that is easier to pluck.
45 citations
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December 2006 in “Baillière's best practice and research in clinical endocrinology and metabolism/Baillière's best practice & research. Clinical endocrinology & metabolism” Vitamin D and its receptor are essential for hair growth, cell regulation, immune function, and heart health.
January 2021 in “Global Dermatology” Cellcurex™ treatment increased hair growth and thickness but caused pain and bleeding.
59 citations
,
January 2003 in “Phytomedicine” Fennel extract cream can reduce hair thickness in people with excessive hair growth.
2 citations
,
June 2022 in “Molecules” Connarus semidecandrus Jack extract promotes hair growth and thickness, reduces prostate cancer cell growth, and could potentially be used as a treatment for hair loss.
July 2023 in “International journal of trichology” Cellcurin therapy with microneedling increases hair density and thickness in treating hair loss in men and women.
September 2025 in “Journal of the Egyptian Womenʼs Dermatologic Society” Using platelet-rich plasma for storing hair grafts improves hair regrowth and density.
21 citations
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June 2017 in “Journal of Dermatological Treatment” Topical cetirizine improves hair density and thickness in androgenetic alopecia, but more research is needed.
October 2025 in “International Wound Journal” Gamma-irradiated amniotic fluid improves healing and reduces thickness of hypertrophic scars.
107 citations
,
August 2014 in “Dermatologic Surgery” PRP injections improve hair thickness for baldness.
15 citations
,
July 2015 in “Developmental Dynamics” Orai1 protein is crucial for tooth development and affects enamel thickness and mineralization.
6 citations
,
September 2017 in “Experimental and Therapeutic Medicine” Shortened PEDF peptides speed up skin wound healing by boosting cell growth.
April 2024 in “Advances in Redox Research” Human hair strength and health are linked to sulfur compounds that can be reduced by stress but improved with sulfur supplements.
23 citations
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January 2016 in “Forensic Science International” Thermal hair straightening changes drug levels in hair, affecting test results.
Cinchona succirubra extract with caffeine reduces hair loss and strengthens hair.
27 citations
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May 2018 in “Journal of Dermatological Science” M2 macrophages, a type of immune cell, help in new hair growth on scars by producing growth factors.
July 2021 in “Aesthetic Surgery Journal” Using lasers and fat grafting before hair transplant improves hair growth on scarred skin.
April 2022 in “Journal of Cosmetic Dermatology” Combining PRP and platelet gel effectively treats resistant hair loss, increasing hair density and thickness.
July 2025 in “Journal of Investigative Dermatology” TGF-β signaling is essential for hair follicle regeneration during wound healing.
December 2022 in “Biochemical and Biophysical Research Communications” HtrA2 activity is crucial for normal hair growth by regulating fat cell development.
January 2013 in “IRIS UNIMORE (University of Modena and Reggio Emilia)” Hydrophobized silica nanoparticles penetrate the skin's outer layer more effectively, while hair follicle density doesn't impact their accumulation.
October 2024 in “Skin Research and Technology” Extracorporeal shock waves significantly improve hair growth in women with female pattern hair loss.
July 2024 in “Journal of Cosmetic Dermatology” Rose stem cell exosomes can significantly improve hair growth in androgenetic alopecia.
72 citations
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July 2012 in “Journal of Investigative Dermatology” Mice lacking a key DNA methylation enzyme in skin cells have a lower chance of activating stem cells necessary for hair growth, leading to progressive hair loss.
2 citations
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June 2012 in “Journal of Dermatological Science” The gene HDC is important for the development of hair follicles in newborn mice.
November 2025 in “Skin Health and Disease” Autosomal recessive woolly hair is rare and involves tightly coiled hair without other health issues.
21 citations
,
January 2007 in “Journal of Drugs in Dermatology” The laser effectively removes hair for skin types IV and V but is less effective for type VI.
11 citations
,
August 2021 in “Stem Cell Research & Therapy” The document concludes that using a person's own fat cells (SVF) can significantly increase hair thickness and density, suggesting it could be a promising treatment for hair loss.
7 citations
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April 2013 in “Clinical and Experimental Dermatology” Tianeptine, an antidepressant, may prevent stress-induced hair loss in mice.
1 citations
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January 1996 in “Springer eBooks” Diet affects baldness; eat balanced, less animal fat, more fruits, vegetables, and cereals.