520 citations
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February 2001 in “Journal of Clinical Investigation” VEGF helps hair grow and determines follicle size by increasing blood vessel growth.
211 citations
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April 2013 in “Development” More dermal papilla cells in hair follicles lead to larger, healthier hair, while fewer cells cause hair thinning and loss.
4 citations
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January 1991 in “Journal of dermatological treatment” Goserelin and oestradiol treatment slightly improved hairiness but did not significantly change sebum production or hair characteristics in mildly hirsute women.
78 citations
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October 2012 in “Biomaterials” Larger spheroids improve hair growth, but size doesn't guarantee thicker hair.
February 2015 in “Dermatologic Surgery” Smaller reticle sizes are as accurate as the standard size for measuring hair density in hair restoration.
405 citations
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January 2004 in “Journal of Investigative Dermatology” Hair follicle size and distribution vary significantly across different body sites.
96 citations
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April 2017 in “Oncotarget” Smaller nanoemulsions can penetrate skin and hair follicles better, which may be useful for delivering drugs and vaccines through the skin.
27 citations
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June 2005 in “The journal of investigative dermatology/Journal of investigative dermatology” The study found that variations in hair protein genes are likely due to evolutionary deletions or duplications.
3 citations
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April 2023 in “Research Journal of Pharmacy and Technology” Calendula Officinalis extract can be used to create an effective natural hair dye.
53 citations
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April 2014 in “Experimental Dermatology” Wnt10b makes hair follicles bigger, but DKK1 can reverse this effect.
92 citations
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November 2006 in “Proceedings of the National Academy of Sciences of the United States of America” BMP signaling controls hair follicle size and cell growth by affecting cell cycle genes.
53 citations
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June 2005 in “The journal of investigative dermatology/Journal of investigative dermatology” KAP genes show significant genetic variability, but its impact on hair traits is unclear.
3 citations
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November 2024 in “International Journal of Pharmaceutics” Larger positively charged gelatin nanoparticles are more effective for delivering treatments to hair follicles.
March 2024 in “Bioimpacts” 400 nm particles penetrate hair follicles best, but mouse models aren't fully reliable for human studies.
2 citations
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January 2022 in “Annals of Dermatology” Treatment type and patch size affect hair regrowth patterns in alopecia areata.
April 2017 in “Journal of Investigative Dermatology” Dermal Wnt/β-catenin signaling is important for the proper size and development of hair follicles.
1 citations
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July 2017 in “Microscopy and Microanalysis” Iron oxide nanoparticles mainly enter the skin through hair follicles and sebocytes, not the dermis.
Cinnamon oil works as well as minoxidil for hair growth.
133 citations
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August 1969 in “Science” Melatonin causes weasels to grow white fur and become reproductively inactive.
1 citations
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January 2025 in “JAAD reviews.” Personalized hair care strategies are needed for Black cancer patients to prevent hair loss during chemotherapy.
September 2021 in “Zenodo (CERN European Organization for Nuclear Research)” The new laser is effective, safe, and fast for permanent hair removal.
September 2022 in “Journal of Cosmetic Dermatology” Cows moving from tie-stall to free-stall housing had more heel problems, less joint lesions, and higher stress levels.
1 citations
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May 2002 in “British Journal of Dermatology” Hair loss caused by longer latent hair cycle and sudden miniaturization, not gradual follicle size reduction.
June 2021 in “World Journal Of Advanced Research and Reviews” A stable emulsion made with plant extracts and oils was effective in stimulating hair growth.
May 2002 in “British Journal of Dermatology” Hair loss caused by longer latent hair cycle and sudden miniaturization, not gradual follicle size reduction.
97 citations
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September 2011 in “British Journal of Dermatology” The human hair follicle can store topical compounds and be targeted for drug delivery with minimal side effects.
9 citations
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September 2022 in “Frontiers in Physics” The technique accurately identifies and evaluates hair follicle structures in skin.
4 citations
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May 2019 in “Journal of Cosmetic Dermatology” Using a smaller syringe causes less pain when giving an injection.
3 citations
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February 2021 in “Evidence-based Complementary and Alternative Medicine” The Chinese herbal supplement BeauTop can potentially boost hair growth and thickness by increasing a protein called Vascular Endothelial Growth Factor.