January 2019 in “Journal of Entomology and Zoology Studies” Ruminant goats have larger and more defined hair follicles than younger goats.
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.
March 1983 in “Annals of Internal Medicine” 5-Aminosalicylic acid enemas may cause immediate hair root damage and hair loss.
26 citations
,
August 2014 in “Veterinary Dermatology” Sphynx cats have abnormal hair follicles and keratinization affecting their skin.
January 2026 in “New Journal of Chemistry” Minoxidil-loaded nanoparticles improve hair loss treatment by enhancing delivery and reducing irritation.
October 2025 in “International Journal of Cosmetic Science” Hair properties vary by ethnicity and environment, affecting surface charge and particle deposition.
July 2025 in “Journal of Ayurveda and Holistic medicine.” The treatment improved hair thickness and reduced hair loss.
63 citations
,
October 1972 in “British Journal of Dermatology” Women with thinning hair have thinner hair strands than women without hair loss.
58 citations
,
June 1987 in “Archives of Dermatological Research” EGF and FGF boost hair cell growth, hydrocortisone slows it, and minoxidil doesn't affect it.
2 citations
,
June 2021 in “Notulae Botanicae Horti Agrobotanici Cluj-Napoca” More research is needed to understand how nutrients affect root hair growth.
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.
February 2026 in “The European Physical Journal E” Root hair growth mechanics depend on turgor pressure and cell wall properties.
August 2025 in “bioRxiv (Cold Spring Harbor Laboratory)” Root hair stiffness is mainly influenced by tip compression and turgor pressure.
14 citations
,
November 2013 in “Journal of the American Society for Horticultural Science” Glycine slows main root growth but boosts root hair growth in habanero peppers.
56 citations
,
December 2011 in “The Plant Journal” AGD1 is important for root hair development in Arabidopsis, working with phosphoinositide signaling and the actin cytoskeleton.
May 2024 in “Plant and Soil” Root hairs in maize grow mainly in air-filled pores, limiting their role in nutrient uptake and plant anchorage.
2 citations
,
December 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” The SYP123-VAMP727 complex is important for transporting materials that harden the root hair shank in Arabidopsis.
200 citations
,
November 1997 in “Planta” Calcium affects where root hairs grow, but other unknown factors determine their growth direction.
193 citations
,
February 2015 in “Nature Communications” Fungi-produced compounds can change plant root growth.
61 citations
,
April 2012 in “British Journal of Dermatology” Caucasian women's hair appears thickest in their 20s, with perceived thinning after mid-30s due to both decreasing density and diameter.
24 citations
,
November 1978 in “Biochemistry” α-type filaments in guinea pig hair follicles have unique structural features.
8 citations
,
July 2022 in “Frontiers in plant science” pH changes are crucial for root hair growth because they affect enzymes and proteins that control the cell wall and growth.
December 2023 in “Frontiers in plant physiology” Root hairs are key for developing cereals that can fertilize themselves with nitrogen.
18 citations
,
December 2020 in “Frontiers in cell and developmental biology” miR-140-5p in certain cell vesicles helps hair growth by boosting cell proliferation.
15 citations
,
July 2004 in “Journal of morphology” Monotreme hair structure and protein distribution are similar to other mammals, but their inner root sheath cornifies differently, suggesting a unique evolution from reptile skin.
12 citations
,
July 2016 in “Forensic science international” The research found that postmortem root bands in hair are likely caused by the breakdown of a specific part of the hair's inner structure after death.
9 citations
,
June 2020 in “Tissue Engineering and Regenerative Medicine” HHORSC exosomes and PL improve hair growth treatment outcomes.
9 citations
,
June 2019 in “Mycopathologia” Malassezia yeast linked to hair loss; ketoconazole helps treat it.
6 citations
,
May 2020 in “Scientific reports” Researchers identified genes and proteins that may influence wool thickness in sheep.
5 citations
,
January 2012 in “Journal of Tissue Science & Engineering” Collagen membranes improve melanocyte growth for treating skin depigmentation.