February 2024 in “Journal of Pakistan Medical Association” Low zinc levels in hair and serum are linked to chronic hair loss.
October 2022 in “Linköping University medical dissertations” The method shows hair testosterone levels reflect those in saliva, but are affected by various factors and may indicate a risk for heart attack.
September 2021 in “Psychoneuroendocrinology” Nurses had higher stress levels during intense phases of the COVID-19 pandemic.
February 2021 in “Journal of the Korean Society of Cosmetology” Castor oil improves the texture of bleached hair by increasing its strength.
June 2014 in “Toxicologie analytique et clinique/Annales de toxicologie analytique” Older age increases positive hair alcohol test results, and chest hair is a good alternative for testing; season affects results, with higher levels in winter.
June 2014 in “Toxicologie analytique et clinique/Annales de toxicologie analytique” Hair analysis can be unreliable due to external contamination and varying drug concentrations.
January 2014 in “Italian journal of anatomy and embryology” Platelet Rich Plasma can help human hair grow in a lab setting.
August 2005 in “Microscopy and Microanalysis” Polymethylene wax in hair relaxers makes hair smooth and shiny with less damage.
January 1990 in “Advances in forensic haemogenetics” Human hair protein patterns are inherited genetically.
88 citations
,
May 2005 in “Journal of Dermatological Science” Versican, a protein, is less present in thinning hair follicles and this decrease might contribute to common hair loss in men.
16 citations
,
January 2007 in “Dermatology” Scientists have made progress in understanding hair follicle stem cells, identifying specific genes and markers, and suggesting their use in treating hair and skin conditions.
9 citations
,
January 2011 in “Journal of X-ray science and technology” Perming and bleaching damage hair differently, with bleached hair having more cysteic acid in the cuticle.
8 citations
,
February 2016 in “The American Journal of Dermatopathology” Hair transplants can make hair follicles larger and hair shafts thicker.
5 citations
,
July 2019 in “Clinical and experimental dermatology” Adding collagenase to trypsin improves cell yield and repigmentation in vitiligo treatment.
4 citations
,
December 2013 in “British Journal of Dermatology” ESR2 gene linked to female-pattern hair loss.
3 citations
,
January 2021 in “Applied sciences” Fermented red ginseng and a traditional herb mix improved hair growth in mice.
2 citations
,
May 2006 in “Journal of Separation Science” The method effectively measures spermidine in hair lotions.
1 citations
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February 2015 in “Zenodo (CERN European Organization for Nuclear Research)” Different hair fiber brands have unique electrostatic and dielectric properties.
January 2026 in “International journal of research and scientific innovation” A natural hair cream with 15% extract is stable, effective, and better for hair and scalp than synthetic creams.
December 2024 in “PLoS ONE” Hair growth serums A and C can affect hair growth genes and pathways, suggesting potential for personalized hair loss treatments.
Human scalp hair follicles have PGE2 and its receptors, which might affect hair growth.
36 citations
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August 2023 in “Journal of Investigative Dermatology” Understanding the hair growth cycle in mice is crucial for accurate research, as it affects study results and requires careful timing and methods.
22 citations
,
June 2012 in “PLOS ONE” Cholesterol-related compounds can stop hair growth and cause inflammation in a type of scarring hair loss.
15 citations
,
July 2002 in “Clinical and Experimental Dermatology” Hair microscopy is useful for diagnosing certain hair loss conditions but has limitations and must be interpreted carefully.
5 citations
,
May 2001 in “Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE” The DWLSM provides detailed imaging of hair shafts and follicles with high accuracy.
3 citations
,
January 2025 in “Animal Genetics” Variants on chromosome 10 affect hair thickness in Dazu black goats.
September 2025 in “Clinical Cosmetic and Investigational Dermatology” Exosome therapy shows promise for hair growth with minimal side effects, but more research is needed.
211 citations
,
April 2013 in “Development” More dermal papilla cells in hair follicles lead to larger, healthier hair, while fewer cells cause hair thinning and loss.
202 citations
,
August 2017 in “Nature cell biology” Lactate production is important for activating hair growth stem cells.
194 citations
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May 2000 in “Journal of Investigative Dermatology” The hedgehog signaling pathway is crucial for hair growth but not for the initial creation of hair follicles.