7 citations
,
December 1987 in “Fertility and sterility” The vellus index is a simple, quick, and reliable method to assess and monitor hair growth, especially in hirsutism.
8 citations
,
July 2020 in “Medicine” Helmet-like device safely increases hair density for people with hair loss.
11 citations
,
September 2012 in “Journal of animal physiology and animal nutrition” Higher protein diets with DL-methionine improve mink hair growth and fur quality.
January 2025 in “Clinical Dermatology Review” Finasteride 5 mg and topical minoxidil 5% effectively increase hair density in women, with finasteride 5 mg having the highest satisfaction.
2 citations
,
January 2024 in “BioMed Research International” Patients with alopecia areata and eosinophilia have more nail issues and severe hair loss.
The authors defended their methods for measuring hair density and caliber, emphasizing the need for consistent photography and manual counting for accuracy in evaluating hair loss treatments.
52 citations
,
March 2015 in “Tissue Engineering Part C Methods” 3D images of skin show collagen is evenly spread, but elastic fibers are fewer near hair follicles.
Baricitinib helps keep hair, eyebrows, and eyelashes regrown for 3 years in most people with severe hair loss.
April 2024 in “The journal of investigative dermatology/Journal of investigative dermatology” ASH2L is essential for skin and hair development.
19 citations
,
December 2015 in “Journal of Materials Chemistry B” Scientists have created a method to deliver specific cells that can regenerate hair follicles, potentially offering a new treatment for hair loss.
1 citations
,
October 2023 in “Journal of plastic, reconstructive & aesthetic surgery” Stem cell-derived conditioned medium is effective in improving hair density and thickness for alopecia treatment.
13 citations
,
December 1983 in “Canadian journal of zoology” Heterotypic cell contacts likely help hair matrix cells differentiate during mouse hair follicle development.
January 2018 in “International Journal of Medical Reviews and Case Reports” Bimatoprost 0.03% solution may help treat hair loss.
56 citations
,
June 2010 in “Clinical and experimental dermatology” Coudability hairs are useful markers for alopecia areata activity.
January 2015 in “Journal of cosmetology & trichology” Mesotherapy might help make eyebrows thicker and darker for some people.
8 citations
,
January 2019 in “Experimental Dermatology” The 3D skin model is better for hair growth research and testing treatments.
102 citations
,
August 2008 in “Genes & Development” Laminin-511 is crucial for early hair growth and maintaining important hair development signals.
November 2025 in “Aurum Revista Multidisciplinar” Microneedling with growth factors effectively increases hair density in androgenetic alopecia.
January 2013 in “프로그램북(구 초록집)” Adipose stem cell-conditioned media improved hair density and thickness in women with hair loss.
January 2017 in “SM dermatology journal” Eyebrow hair transplants have high patient satisfaction and require surgeons to have artistic and technical skills.
15 citations
,
April 2020 in “Journal of The American Academy of Dermatology” Oral minoxidil can increase or maintain hair thickness in most people with lichen planopilaris, with mild side effects.
10 citations
,
January 2012 in “Annals of Dermatology” Finasteride 1.25 mg showed small improvements in hair density and thickness for female pattern hair loss, but more research is needed.
24 citations
,
December 2011 in “Journal of The American Academy of Dermatology” Caucasian hair is denser, but Asian hair is thicker in female pattern hair loss patients.
24 citations
,
June 2019 in “Journal of Cosmetic Dermatology” Scalp microneedling may improve hair density and thickness for various alopecia types.
4 citations
,
October 2017 in “International Journal of Applied Pharmaceutics” Licorice extract hair tonics are effective and safe for hair growth, except for mild eye irritation at the lowest concentration.
7 citations
,
February 1962 in “Experimental Biology and Medicine” Male and female mice have different lipid compositions in their skin during hair growth cycles.
4 citations
,
November 2004 in “Clinical and Experimental Dermatology” Hair length and thickness are related, with thickness peaking at about a quarter of the hair's maximum length.
October 2025 in “Journal of Craniofacial Surgery” Chitosan and minoxidil both improve hair growth, but more research is needed on chitosan.
12 citations
,
February 2006 in “Lipids” Hair texture changes with age due to varying levels of lipids.
March 2026 in “Journal of Cosmetic Dermatology” Topical Stemoxydine improves hair density in androgenetic alopecia with few side effects.