7 citations
,
January 2009 in “BMJ Case Reports” Gefitinib can cause slower, finer, brittle, and curly scalp hair.
41 citations
,
December 2011 in “The journal of investigative dermatology/Journal of investigative dermatology” Deleting MED1 in skin cells causes hair loss and skin changes.
33 citations
,
June 1995 in “International journal of legal medicine” Environmental factors can greatly reduce drug levels in hair.
27 citations
,
January 1995 Melanin in black hair protects it from sun damage better than light-brown hair.
September 1998 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” The document concludes that individualized treatments for hair issues are effective, certain hair changes can indicate neurocutaneous diseases, specific lotions improve skin health, laser hair removal works but needs more study on long-term effects, men's cosmetics are diverse, peeling is effective but can have side effects, and facial pigmentation is often due to overactive skin cells.
8 citations
,
August 2018 in “Drug testing and analysis” EtG levels in hair decrease significantly after one month of alcohol abstinence.
26 citations
,
January 2013 in “BioMed Research International” Hormonal changes after childbirth and menopause can lead to women's hair loss and facial hair growth, with a need for better treatments.
8 citations
,
February 2016 in “The American Journal of Dermatopathology” Hair transplants can make hair follicles larger and hair shafts thicker.
3 citations
,
March 2021 in “Metabolites” Hair loss causes differ between men and women due to changes in hormone levels and inflammation-related pathways.
13 citations
,
March 2006 in “International Journal of Cosmetic Science” The study found that a polymer treatment changes the charge on hair surfaces, making bleached hair smoother and less porous.
12 citations
,
January 2002 in “Environmental and Molecular Mutagenesis” Smoking reduces antioxidants and causes DNA damage in hair follicles.
7 citations
,
July 2011 in “Archives of Dermatology” Alopecia areata caused a boy's hair to regrow straight instead of curly, but the exact reason is unknown.
April 2026 in “Clinical Cosmetic and Investigational Dermatology” Androgenetic alopecia involves a fungal imbalance in hair follicles, suggesting potential for microbiome-targeted treatments.
April 2025 in “Frontiers in Animal Science” Sheep exosomes can enhance hair growth in mice.
April 2025 in “OPAL (Open@LaTrobe) (La Trobe University)” Exosomes from small-tailed Han sheep enhance hair growth in mice.
April 2025 in “OPAL (Open@LaTrobe) (La Trobe University)” Exosomes from small-tailed Han sheep can boost hair growth and thickness in mice.
January 2004 in “Chinese Journal of Dermatology” Injecting specific oligonucleotides can change hair growth and structure by altering a gene.
1 citations
,
July 2015 in “Microscopy Research and Technique” Friedreich's ataxia causes thin, weak hair with surface damage and cavities.
November 2024 in “International Journal of Cosmetic Science” Haircare products with a pH between 5 and 7 are best for maintaining healthy hair.
8 citations
,
December 2003 in “Experimental Dermatology” Altering the keratin 17 gene in mice hair follicles caused temporary hair issues, but changes were minimal and short-lived.
January 2022 in “Surgical & Cosmetic Dermatology” Isotretinoin can rarely cause hair to grow curly.
71 citations
,
May 1996 in “Journal of Investigative Dermatology” Ornithine decarboxylase is crucial for hair growth regulation in mice.
28 citations
,
June 2012 in “International Journal of Molecular Medicine” Radiation damages hair stem cells and changes keratin expression, with Krt5 as a potential marker for radiation effects.
April 2013 in “e-Competitions Bulletin” In 2013, the FTC settled with hair company Bosley over claims it illegally shared business information with a competitor.
16 citations
,
November 2005 in “Journal of Clinical Pathology” CD1d expression in scalp skin and hair follicles changes with the hair cycle and may help protect against microbes.
7 citations
,
January 2020 in “Journal of Dermatology” Cantu syndrome, which causes excessive hair growth and skin issues, is due to a mutation in the ABCC9 gene, and understanding this could help develop new treatments for hair diseases.
11 citations
,
January 2014 in “Egyptian Journal of Dermatology and Venereology” Women losing hair might have lower levels of vitamin D.
March 2023 in “Pakistan Journal of Medical and Health Sciences” Low vitamin D levels are linked to higher rates of hair loss in women.
252 citations
,
November 1995 in “The EMBO Journal” Blocking EGFR in mice causes hair loss and skin changes.