July 2024 in “Journal of Investigative Dermatology” Hair follicles are crucial for maintaining skin barrier function.
90 citations
,
July 1993 in “Journal of Investigative Dermatology” 30 citations
,
November 2005 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” The lipid in human hair follicles acts as a barrier, similar to the skin's lipid layer.
6 citations
,
December 2018 in “International Journal of Cosmetic Science” CARB is a strong barrier in human hair that prevents dye penetration.
38 citations
,
July 1993 in “Journal of Investigative Dermatology”
10 citations
,
November 2016 in “International Journal of Cosmetic Science” A tough membrane between the outer and inner layers of human hair protects it from damage.
9 citations
,
July 2008 in “Archives of Dermatological Research” February 2022 in “Cosmetic Dermatology” Healthy skin prevents water loss and protects against threats.
156 citations
,
August 2016 in “Journal of controlled release” Tight junctions are key for skin protection and controlling what gets absorbed or passes through the skin.
16 citations
,
February 2015 in “Photochemistry and Photobiology” Hair acts as a significant natural sun barrier, with protection increasing based on hair density, thickness, and melanin presence.
13 citations
,
August 1985 in “The Journal of Dermatology” HKN-2 antibody targets specific skin and hair cells, showing keratin complexity.
78 citations
,
November 2005 in “Endocrinology” Hairless protein can block vitamin D activation in skin cells.
November 2024 in “International Journal of Molecular Sciences” Hair helps prevent scalp skin cancer by supporting immune protection.
October 2025 in “International Journal of Advanced Multidisciplinary Research and Studies” Hairless dogs have unique skin adaptations to regulate temperature and protect against environmental factors.
53 citations
,
September 2013 in “Journal of Investigative Dermatology” Hair follicle cells help protect against immune attacks by regulating T-cell activity.
39 citations
,
August 2018 in “Scientific reports” Claudin-1 is important for the barrier function and growth of hair.
30 citations
,
October 2016 in “Current research in translational medicine” Hair follicles on the scalp interact with and respond to the nervous system, influencing their own behavior and growth.
1 citations
,
January 2022 in “The Keio Journal of Medicine” Hair follicles regulate immune cells in the skin, and disrupting certain pathways can lead to skin issues and infections.
65 citations
,
December 2000 in “PubMed” The biology of skin and hair is complex and not fully understood.
21 citations
,
January 2010 in “Skin pharmacology and physiology” Special creams can significantly reduce pollen allergens getting into hair follicles.
21 citations
,
June 2011 in “Investigative Ophthalmology & Visual Science” Hair follicles could help develop eye treatments by studying immune responses.
October 2024 in “Preprints.org” Hair helps prevent scalp skin cancer by supporting immune protection.
1 citations
,
October 2023 in “PROTOPLASMA” 10 citations
,
December 2001 in “PubMed” The conclusion is that substances can penetrate hair fibers through multiple pathways, including both the cell membrane complex and the non-keratinous parts.
43 citations
,
October 2005 in “Molecular and cellular endocrinology” Hair melanocytes help the skin respond to stress and regulate hair pigmentation.
425 citations
,
August 2002 in “BioEssays” The cornified cell envelope forms a protective barrier in skin and hair, using specific proteins and lipids to maintain effectiveness.
2 citations
,
January 2004 in “Sen i Gakkaishi” Human hair and nail proteins are unlikely to cause allergic reactions.
43 citations
,
April 1996 in “Journal of Investigative Dermatology”
21 citations
,
January 2024 in “Science Immunology” Regulatory T cells protect hair follicle stem cells by maintaining immune privilege in the skin.
April 2017 in “Journal of Investigative Dermatology” Sweat glands and hair follicles are determined by opposing signals, with BMPs promoting sweat glands and blocking BMPs leading to hair follicles.