14 citations
,
September 2016 in “Journal of Photochemistry and Photobiology B Biology” UV exposure damages hair, increasing thiols and altering protein structure.
November 2024 in “Journal of Cosmetic Dermatology” MSC exosome therapy improved hair quality in patients with acquired trichorrhexis nodosa.
9 citations
,
December 2020 in “British Journal of Dermatology” Low-dose oral minoxidil increases hair thickness and length in children with a hair disorder called Loose Anagen Hair Syndrome.
2 citations
,
September 2022 in “Frontiers in genetics” Different proteins are linked to the varying thickness of sheep and goat hair types.
5 citations
,
June 2013 in “Fashion business” Rosehip extract improves hair wave, thickness, and color vibrancy.
7 citations
,
July 2004 in “International Journal of Cosmetic Science” Different hair types from various ethnic groups affect hair shine due to characteristics like thickness and shape.
1 citations
,
March 2024 in “International Journal of Applied Pharmaceutics” Propylene glycol concentration improves rice water gel shampoo's thickness and foam, extending its shelf life.
4 citations
,
January 2019 in “International journal of molecular sciences” Genetically modified sheep with more β-catenin grew more wool without changing the wool's length or thickness.
2 citations
,
August 2019 in “International Journal of Cosmetic Science” Older age and certain lifestyles are linked to thinner, weaker hair, while how you see your hair relates to its thickness.
1 citations
,
March 2017 in “Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego” Domestic cat hair varies in thickness and length, with guard hairs being longest and thickest, and all hair types mainly contain keratin.
2 citations
,
January 2019 in “International Journal of Case Reports and Images” The hair growth solution reduced hair loss and increased hair thickness in a small group of patients.
March 2024 in “International journal of molecular sciences” The research identified key proteins that affect wool fiber thickness in Angora rabbits.
Justicia procumbens extract may help prevent hair loss and improve hair thickness and shine in a type of hair loss condition.
December 2019 in “Ukrainian Journal of Veterinary and Agricultural Sciences” Donkey and horse hair have different microscopic structures, which can help tell them apart.
42 citations
,
January 2009 in “Colloids and Surfaces B: Biointerfaces” A certain surfactant sticks to human hair, making it change from water-repelling to water-attracting, which could help in hair conditioning.
36 citations
,
October 2014 in “Langmuir” Bleaching hair removes its protective top layer and exposes more hydrophilic groups, changing its chemical surface and affecting how it interacts with products.
11 citations
,
August 2021 in “Stem Cell Research & Therapy” The document concludes that using a person's own fat cells (SVF) can significantly increase hair thickness and density, suggesting it could be a promising treatment for hair loss.
5 citations
,
January 2018 in “International Journal of Trichology” Hair strength is similar across different scalp areas, and not affected by age, gender, or hair thickness.
April 2025 in “INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT” Hair histology helps identify animal species in forensic investigations.
39 citations
,
April 2020 in “Clinical, Cosmetic and Investigational Dermatology” Asian hair is generally straight and thick, with unique disorders and properties, and more research is needed to understand it fully.
10 citations
,
June 2019 in “International Journal of Cosmetic Science” Some plant-based chemicals may help with hair growth, but more research is needed to confirm their effectiveness.
9 citations
,
February 1981 in “Australian journal of biological sciences” Lambs fed a liquid diet showed abnormal wool and skin, which improved with more B-vitamins, suggesting a link to B-vitamin deficiency.
1 citations
,
January 2021 in “Brazilian Journal of Medical and Biological Research” Constant light exposure during pregnancy changes newborn rabbits' skin, affecting hair follicles, skin thickness, and pigment cells.
1 citations
,
January 2003 in “Dermatology” Finasteride's effectiveness measured by observing hair cortex changes using a cheap and easy method.
53 citations
,
May 1986 in “Clinics in endocrinology and metabolism” Androgens like testosterone affect hair growth and oil production differently across body parts and individuals.
47 citations
,
January 2013 in “International Journal of Cosmetic Science” Hair diversity is influenced by complex genetics and environmental factors, requiring more research for practical solutions.
3 citations
,
October 2007 in “Expert Review of Dermatology” Hair ages due to various factors and treatments like minoxidil and finasteride can help, but more research and better public awareness are needed.
2 citations
,
December 2022 in “Journal of toxicologic pathology” Skin structure complexity and variability are crucial for assessing skin toxicity in safety tests.
1 citations
,
June 2024 in “JMIR Dermatology” 675 nm laser therapy effectively improves hair growth and density in AGA patients.
Polarized microscopy helps identify hair irregularities in genetic disorders.