January 2000 in “Optics Letters” Laser treatment can inhibit hair growth and different hair colors reach different temperatures when lasered.
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.
56 citations
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November 2010 in “Pigment Cell & Melanoma Research” Brain hormones significantly affect hair color and could potentially be used to prevent or reverse grey hair.
Prussian Blue causes hair cuticles to detach, weakening the hair.
Copper levels in green hair decreased significantly after treatment.
3 citations
,
May 1979 in “PubMed” October 2024 in “UNESP Institutional Repository (São Paulo State University)” Straightening and dyeing damage hair structure.
4 citations
,
January 2017 in “Annals of Dermatology” Frequent hairdryer use may worsen hair fragility in people with Pili Annulati.
Hair follicles emit electromagnetic fields due to S100 proteins.
13 citations
,
October 2008 in “PubMed” Japanese women's curved hair has an uneven internal structure and varying amino acid composition.
1 citations
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January 2018 in “Jornal Brasileiro de Patologia e Medicina Laboratorial” Monilethrix causes brittle hair and hair loss, and it runs in families.
March 2005 in “Journal of the American Academy of Dermatology” Cosmetic treatments can replenish key amino acids in damaged hair, improving its strength and appearance.
October 2020 in “Ayurline: international journal of research in indian medicine” Poor quality hair products contribute to premature greying in children.
7 citations
,
May 1988 in “International Journal of Dermatology” The patient's hair has unique structural differences with alternating bright and dark bands.
East and Southeast Asians typically have less dense but thicker, straight black hair.
November 2025 in “Zenodo (CERN European Organization for Nuclear Research)” Hair dyeing changes hair structure, but new technologies help protect hair while coloring.
27 citations
,
September 1988 in “PubMed” Hair follicle shape determines hair type: curly, straight, or in-between.
A 14-year-old girl with Loose Anagen Hair Syndrome was successfully treated with oral Minoxidil and a Silicon supplement.
40 citations
,
December 2011 in “British Journal of Dermatology” Women's hair generally gets thinner and less dense starting in their mid-thirties, with hair loss becoming more common as they age due to both genetics and environment.
243 citations
,
October 2003 in “Developmental biology” Ectodin integrates BMP, SHH, and FGF signals in developing ectodermal organs.
215 citations
,
March 2018 in “Archives of Toxicology” Tiny pollution particles called PM2.5 can harm skin cells by causing stress, damage to cell parts, and cell death.
157 citations
,
April 1994 in “Clinical endocrinology” Androgens can cause hair growth in some areas and hair loss on the scalp.
118 citations
,
May 2015 in “European journal of pharmaceutics and biopharmaceutics” The hydrogel with a 1:3 ratio of hydroxyethyl cellulose to hyaluronic acid is effective for delivering drugs through the skin to treat acne.
117 citations
,
November 2006 in “Experimental Dermatology” The article concludes that the wool follicle is a valuable model for studying tissue interactions and has potential for genetic improvements in wool production.
115 citations
,
March 2019 in “Nature Communications” Frontal fibrosing alopecia is linked to four genetic areas, especially the HLA-B*07:02 allele.
58 citations
,
June 2006 in “Plastic and Reconstructive Surgery” Mice healed without scars as fetuses but developed scars as adults, suggesting scarless healing might be replicated with further research.
52 citations
,
January 1999 in “Journal of Small Animal Practice” Removing a cat's pancreatic cancer can temporarily reverse hair loss caused by the disease.
46 citations
,
January 2009 in “Textile Research Journal” Researchers developed a new method to identify animal hair in textiles, which is effective for various fibers and more reliable than previous methods.
40 citations
,
June 2013 in “Biomaterials” Scientists created 3D hair-like structures that could help study hair growth and test treatments.