90 citations
,
December 2008 in “Journal of Investigative Dermatology” Thyroid-stimulating hormone affects hair follicles but doesn't change hair growth or color.
April 2026 in “Cosmetics” The shampoo effectively covers gray hair gradually and maintains color after multiple washes.
January 2023 in “Journal of Cosmetics, Dermatological Sciences and Applications” The hair growth serum Trichosera® was effective in increasing hair regrowth and density and reducing hair fall without significant side effects.
41 citations
,
July 1994 in “Journal of Dermatological Science” Hair follicle cells need complex interactions to fully differentiate.
October 2024 in “BMC Genomics” Understanding hair follicle development can help improve cashmere quality.
May 2024 in “FEBS open bio” Annurca apple extract may help treat hair loss and protect against oxidative stress.
71 citations
,
June 2005 in “Journal of Investigative Dermatology” PAD enzymes play a key role in hair growth and structure.
47 citations
,
August 2012 in “Cell Cycle” Stem cells in hair follicles can become neurons and other cells, especially in the upper part, useful for nerve repair.
18 citations
,
July 2009 in “Drug Metabolism and Disposition” Finasteride breakdown products found in bile and urine, helps understand drug safety and effectiveness.
15 citations
,
October 2004 in “Colloids and surfaces. B, Biointerfaces” Holes in mature hair are likely caused by the removal of substances during hair care.
2 citations
,
August 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” A specific mutation in the K25 gene causes a rare genetic disorder with curly hair at birth and later hair loss, along with dental issues.
2 citations
,
February 2021 in “FEBS open bio” Human hair keratins K85 and K35 create unique filament patterns important for early hair formation.
November 2025 in “Pharmacological Research” Plant-derived nanoparticles from Polygoni Multiflori Radix promote hair growth better than Minoxidil by affecting androgen pathways.
August 2022 in “Nutrients” Nutritional supplements may help improve hair growth in female pattern hair loss.
75 citations
,
April 2000 in “Developmental Dynamics” Whn is essential for hair growth, and its malfunction causes hair loss.
235 citations
,
July 1999 in “Journal of biological chemistry/The Journal of biological chemistry” Human hair is made up of different keratins, some strong and some weak, with specific types appearing at various stages of hair growth.
July 2025 in “International Journal of Trichology” Biological factors are crucial for developing new hair restoration treatments.
40 citations
,
July 2015 in “Journal of Cellular Biochemistry” Cysteine helps maintain keratin production in skin cells even when iron is low.
35 citations
,
August 2009 in “Differentiation” Desmoglein 4 is controlled by specific proteins that affect hair growth.
18 citations
,
June 1993 in “Archives of Dermatological Research” Human hair follicles can be used to create skin-like tissue for wound healing and drug testing.
13 citations
,
January 2021 in “Journal of Cellular and Molecular Medicine” Thymosin β4 may boost hair growth by aiding stem cell movement and blood vessel formation.
March 2025 in “Advanced Science” Bioengineered hair germs using special hydrogels can help regenerate hair follicles and treat hair loss.
May 2024 in “International Journal of Cosmetic Science” Disulfide bonds are crucial for hair's strength, especially when wet.
28 citations
,
June 2012 in “International Journal of Molecular Medicine” Radiation damages hair stem cells and changes keratin expression, with Krt5 as a potential marker for radiation effects.
1 citations
,
September 2013 in “Mayo Clinic Proceedings” A woman's hair loss was treated successfully with iron supplements for her iron deficiency.
April 2026 in “Biomolecules” Squid ink melanin nanoparticles create a safe, long-lasting black hair dye that protects hair and offers UV protection.
January 2024 in “Molecules (Basel. Online)” Juglone from walnut extracts may help repair damaged hair.
4 citations
,
February 2025 in “Nutrients” Gynostemma pentaphyllum extract improves hair elasticity, density, and thickness safely.
November 2025 in “Journal of Natural Fibers” Human hair waste can be valuable in engineering and materials due to its unique properties.
August 2025 in “Applied Sciences” Peroxide-rich plasma-activated water is gentler on hair than nitrate-rich formulations.