37 citations
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December 2001 in “Journal of Investigative Dermatology” Leptin may play a role in hair growth and hair follicle health.
February 2024 in “Pharmaceutical research” Hair follicles affect how well small molecules can pass through the skin, and this varies depending on the molecule's features.
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.
9 citations
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June 2017 in “Journal of Cutaneous Pathology” People with pemphigus vulgaris and pemphigus foliaceus often have smaller sebaceous glands on their scalp.
2 citations
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February 2022 in “Genomics” Researchers discovered new cell types in goat hair follicles that could help understand hair regrowth and human hair loss.
October 2007 in “Springer eBooks”
22 citations
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July 2019 in “PLOS ONE” Skin lymphatic vessels are essential for hair growth.
53 citations
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September 2011 Other common signs, not just the well-known immune cells around hair bulbs, are important for diagnosing hair loss from alopecia areata.
8 citations
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September 2002 in “Genes to Cells” Killing specific cells in hair follicles can lead to hair growth problems in mice.
81 citations
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September 2013 in “PLoS ONE” Primary and secondary hair follicle cells in Cashmere goats have different gene expressions affecting hair growth and size.
19 citations
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July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Dermal-epidermal interactions are crucial for hair growth and maintenance.
36 citations
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September 1996 in “PubMed” DP and DS cells are different from DF cells in structure and function.
2 citations
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September 2002 in “Dermatologic Surgery” Each group of hair follicles on the scalp shares one muscle that helps control hair movement.
44 citations
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July 1993 in “Journal of Investigative Dermatology”
6 citations
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June 2019 in “Skin Research and Technology” Finasteride works for hair loss by maintaining existing hair follicles, not reversing miniaturization.
182 citations
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December 2007 in “BJCP. British journal of clinical pharmacology/British journal of clinical pharmacology” Hair follicles significantly increase the speed and amount of caffeine absorbed through the skin.
July 2025 in “Cell & Bioscience” Specific immune cells and pathways contribute to hair follicle inflammation and hair loss, suggesting potential treatments for lichen planopilaris.
June 2022 in “Jordan Journal of Applied Science - Natural Science Series” Human body follicles have diverse structures and functions important for health.
2 citations
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January 1990 in “PubMed” Perforating folliculitis is a skin condition with small bumps that may be linked to other diseases and is hard to treat.
35 citations
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November 2010 in “Journal of Cutaneous Pathology” Dilated follicular infundibula and increased catagen/telogen follicles are key indicators for diagnosing alopecia areata.
109 citations
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November 2005 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” Targeting hair follicles can improve skin treatments and reduce side effects.
December 2025 in “Russian Journal of Skin and Venereal Diseases” Hair follicles are thinner in alopecia patients, especially in alopecia areata.
January 1997 in “Han-guk hyeonmigyeong hakoeji/Applied microscopy” The hair follicle's connection to connective tissue is weaker than the skin's.
12 citations
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March 2012 in “ATLA. Alternatives to laboratory animals” Hair follicles significantly affect the skin absorption of some drugs.
May 2024 in “Journal of Advanced Research” Communication between blood vessel and hair follicle cells decreases with age, affecting hair growth and blood vessel formation.
August 2009 in “Mechanisms of Development” Adult hair follicle cells can create new hair follicles from corneal cells with the right support.
January 1997 in “Fundamental & Clinical Pharmacology”
82 citations
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January 2002 in “Journal of drug targeting” Drugs penetrate scalp skin better than abdominal skin, with scalp hair follicles aiding in higher drug delivery.
227 citations
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January 1998 in “Journal of Endocrinology” Cells from balding scalps have more androgen receptors than cells from non-balding scalps.
January 2025 in “International Journal of Dermatology” Consider TFI in facial hypopigmentation diagnoses and confirm with a biopsy.