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August 2011 in “Experimental Dermatology” The flap assay grows the most natural hair but takes the longest, the chamber assay is hard work but gives dense, normal hair, and the patch assay is quick but creates poorly oriented hair with some issues.
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December 2005 in “Journal of Biological Research - Bollettino della Società Italiana di Biologia Sperimentale” Ancient South American mummies' hair shows high sulfur, calcium, and potassium levels.
June 2022 in “Journal of Cosmetic Dermatology” Acanthus ebracteatus extract may help prevent hair loss.
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March 2020 in “Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy” Alopecic hair has more irregular structures and chemical changes than normal hair, reducing its strength.
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July 1991 in “Journal of The American Academy of Dermatology” Understanding hair follicle anatomy helps diagnose hair disorders.
June 2023 in “Journal of Pharmaceutical and Health Research” Caffeine hair tonic with 0.001% concentration was more effective in promoting hair growth on guinea pigs.
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January 2010 in “Veterinary pathology” A new mutation in the hairless gene causes hair loss and skin wrinkling in mice.
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January 2022 in “DOAJ (DOAJ: Directory of Open Access Journals)” Argan oil-based nano carriers could potentially deliver caffeine to hair follicles to treat hair loss.
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March 2017 in “The journal of investigative dermatology/Journal of investigative dermatology” Growing hair follicles have high mitochondrial activity and ROS in specific regions, aiding hair formation.
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January 2021 in “Cell Transplantation” Baby teeth stem cells can help grow hair in mice.
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January 1987 in “Journal of Investigative Dermatology” Coal tar shampoo increases enzyme activity in hair follicles, enhancing carcinogen binding to DNA.
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December 2021 in “Journal of natural fibers” The conclusion is that new methods for isolating hair cuticle cells and removing the cuticle layer are effective and convenient.
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June 1993 in “The Journal of Cell Biology” The oncoprotein causes abnormal hair growth without increasing skin cancer risk.
January 2014 in “Journal of the Korean Society of Design Culture” The study confirmed that changes in hair structure in women with hair loss conditions matched what is taught in beauty college trichology courses.
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December 2010 in “대한의생명과학회지” Hair growth after depilation increases skin thickness, mast cell counts, and cell activity.
June 2023 in “Experimental dermatology” Pubic hair has a thicker, more protective outer layer than scalp hair, possibly due to evolution.
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September 1998 in “Der Hautarzt” A gene mutation causes a rare hereditary hair loss, offering potential for new treatments.
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