21 citations
,
January 2010 in “International journal of trichology” Trichoscopy can diagnose monilethrix, a genetic hair defect causing hair thinning and loss.
April 2025 in “International Journal For Multidisciplinary Research” Hypertrichosis causes excessive hair growth and can be managed with treatments like laser, electrolysis, or new topical solutions.
4 citations
,
August 2023 in “Nature Communications” Mouse zigzag hair bends form due to a 3-day cycle of changes in hair progenitors and their environment.
Malnourished people have weaker hair that is easier to pluck.
November 2025 in “SKIN The Journal of Cutaneous Medicine” Baricitinib helps regrow scalp, eyebrow, and eyelash hair in teens with severe alopecia areata.
2 citations
,
August 2002 in “PubMed” 4 citations
,
December 2020 in “Journal of the American Academy of Dermatology” Pulling 2 or fewer hairs is normal for all hair types, including Afro- and Asian-textured hair.
January 2022 in “Consultant”
1 citations
,
March 2010 in “CRC Press eBooks” Some hair care products may improve hair growth and appearance, and botanicals can also help remove unwanted hair.
1 citations
,
January 2013 in “Asian Journal of Beauty and Cosmetology” Wheat sprout extract can promote hair growth similar to minoxidil.
11 citations
,
February 1982 in “RePub (Erasmus University, Rotterdam)” Studying hair roots can help diagnose hair diseases and guide treatments.
January 2006 in “DOAJ (DOAJ: Directory of Open Access Journals)” Loose anagen hair syndrome causes easily pulled, thin hair in kids but is harmless and temporary.
19 citations
,
May 2008 in “Applied spectroscopy” Human hair has different protein structures in its cuticle and cortex.
July 2023 in “International journal of physiology” Hypertrichosis lanuginosa causes excessive fine hair growth, often linked to genetics or cancer, with limited treatment options.
6 citations
,
February 2018 in “PLOS ONE” Insect wax, especially its policosanol content, may help hair regrow by changing hair follicle phases and increasing nutrient supply.
September 2019 in “Journal of Investigative Dermatology” Researchers successfully used nude mice to study human hair growth, which could help with future hair research.
40 citations
,
October 2002 in “Endocrinology” Vitamin D3 analogs can promote hair growth in mice genetically prone to hair loss.
January 2023 in “Skin appendage disorders” Two Hispanic women developed Plica neuropathica, a condition causing tangled hair, possibly due to hair damage and various risk factors.
22 citations
,
February 2008 in “Journal of Dermatological Science” EPR spectroscopy showed that spontaneous hair growth results in thicker skin and less pigmented hair than depilation-induced growth.
10 citations
,
December 2021 in “Frontiers in cell and developmental biology” The research identified genes that explain why some sheep have curly wool and others have straight wool.
7 citations
,
July 2008 in “Experimental Dermatology” The study concluded that a protein important for hair strength is regulated by certain molecular processes and is affected by growth phases.
May 2026 in “Zenodo (CERN European Organization for Nuclear Research)” Natural hair is a return to its original state, while modifications signal social pressures.
128 citations
,
March 1989 in “Experimental Cell Research” Hoxc13 is important for hair and tongue development by controlling hair keratin genes.
39 citations
,
July 2008 in “Dermatologic Therapy” Pseudopelade of Brocq is a unique hair loss condition, but its cause and development are still not fully understood.
4 citations
,
November 1996 in “European journal of endocrinology” Spironolactone may help treat excessive hair growth in girls, but more research is needed.
April 2018 in “Journal of Investigative Dermatology” Hair follicle stem cells can change their role to ensure proper hair development.
52 citations
,
August 1978 in “Journal of Applied Polymer Science” Human hair's ability to get wet is complex and can change with treatments, damage, and environment.
9 citations
,
October 1982 in “PubMed”
Brunsting-Perry pemphigoid can cause scarring hair loss and may be underdiagnosed.
7 citations
,
January 2019 in “Pharmaceutical Biology” Eclipta prostrata helps hair growth and maintains the growth phase by affecting certain growth factors.