August 1989 in “Proceedings ... annual meeting, Electron Microscopy Society of America/Proceedings, annual meeting, Electron Microscopy Society of America” The research provided a detailed view of the non-keratinous parts of human hair fibers.
October 2025 in “International Journal of Cosmetic Science” Hair properties vary by ethnicity and environment, affecting surface charge and particle deposition.
51 citations
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January 2007 in “The journal of investigative dermatology/Journal of investigative dermatology” Scientists discovered a unique hair protein, KAP24.1, with a special structure, found only in the upper part of hair cuticles.
7 citations
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December 2011 in “Annals of anatomy” Involucrin helps strengthen the inner parts of human hair.
November 2019 in “Journal of Aesthetic Nursing” The article concludes that a thorough diagnosis and treatment plan, including medications, non-invasive methods, or surgery, is important for managing hair loss, with a combination of minoxidil and finasteride being particularly effective.
39 citations
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February 1990 in “The journal of cell biology/The Journal of cell biology” Trichohyalin, a hair follicle protein, has a part with repeating patterns of 23 amino acids.
28 citations
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January 2012 in “Case Reports in Medicine” Hair-thread Tourniquet Syndrome, where hair or thread tightly wraps around a body part, is not rare and requires early detection to prevent serious damage.
26 citations
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April 1999 in “Dermatologic Clinics” The long-pulsed alexandrite laser is effective for hair reduction, particularly for light-skinned individuals with dark hair, but caution is needed for darker skin.
15 citations
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August 1985 in “Archives of dermatology” Tretinoin lotion can remove hair casts, which come from a specific part of the hair follicle and can be classified into two types.
11 citations
,
March 2006 in “Journal of medical ethics” PRP injections may be an effective treatment for severe hair loss.
6 citations
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August 1985 in “Archives of dermatology” A lotion helped remove hair casts, which seem to come from a specific part of the hair follicle, and patients with hair casts can be grouped based on the cause.
November 2024 in “Biophysical Chemistry” Hair structure changes immediately during perm treatment, with initial damage partially restored later.
September 2023 in “Nature Communications” Rare genetic variants in five specific genes are linked to male-pattern hair loss but only account for a small part of the risk.
August 2022 in “Archives of pediatric surgery” Hair-Thread Tourniquet Syndrome is a rare condition where hair or thread tightly wraps around a child's body part, requiring quick treatment to prevent damage.
The research found that people's hair proteins vary, especially by ethnicity and body part, which could help identify individuals in forensic science.
January 2003 in “Journal of the Fourth Military Medical University” Hair follicles can regenerate if cut at certain points, with stem cells in the upper part.
August 2025 in “Journal of Affective Disorders” Gender-diverse people face more depression and anxiety, partly due to stress and lower cortisol levels.
January 2024 in “Journal of tissue engineering” Sunlight exposure damages hair follicles, but certain stem cell-derived particles can reduce this damage and help with hair regeneration.
7 citations
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September 2004 in “International Journal of Cosmetic Science” Blond hair lightens more with visible light directly, while ultraviolet light lightens it after washing by damaging other hair parts.
20 citations
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May 1985 in “British journal of nutrition” Dietary essential fatty acids improved skin and hair conditions and partially corrected fat composition in diabetic mice.
49 citations
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June 2003 in “European journal of cardiovascular prevention & rehabilitation” Hair loss in middle-aged women is often linked to insulin resistance and a family history of hair loss, particularly from their fathers.
42 citations
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January 2008 in “SKINmed/Skinmed” The article explains how to diagnose and manage certain types of scarring hair loss.
40 citations
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March 2019 in “Pharmaceutical development and technology” Smaller particles of the drug carrier penetrated skin better, with 300 nm size being best for targeting hair follicles.
34 citations
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August 2002 in “British Journal of Dermatology” ALA-PDT is effective and safe for chronic X-ray dermatitis, providing complete or partial remission.
29 citations
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July 2003 in “Experimental Dermatology” The upper hair follicle is stable, while the lower part allows movement during hair growth.
24 citations
,
November 2019 in “Dermatologic Surgery” Platelet-rich plasma is most effective for hair loss treatment and wound healing in skin surgery, but more research is needed for consistent results.
16 citations
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November 2019 in “Dermatologic Surgery” Platelet-rich plasma is most effective for hair loss treatment and shows promise for skin healing and rejuvenation, but more standardized research is needed.
9 citations
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July 2014 in “PubMed” Different S100 proteins have specific roles in various parts of the hair follicle.
4 citations
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December 2021 in “The journal of investigative dermatology/Journal of investigative dermatology” Overactive Wnt signaling in mouse skin stem cells causes acne-like cysts and shrinking oil glands, which some treatments can partially fix.
Hormones beyond androgens may cause acne and hair loss.