November 2022 in “Research Square (Research Square)” Seasonal changes affect hair growth genes in Angora goats, possibly influencing mohair quality.
February 2019 in “PubMed” The research found that twisting hair fibers can show changes in stiffness and damage, and help tell apart different hair treatments.
207 citations,
March 2012 in “Development” Skin needs dermal β-catenin activity for hair growth and skin cell multiplication.
84 citations,
December 2008 in “Developmental biology” Retinoic acid-binding proteins in skin are regulated by β-catenin and Notch signalling.
36 citations,
November 2019 in “Molecular biology and evolution” Cysteine-rich keratins evolved independently in mammals, reptiles, and birds for hard skin structures like hair, claws, and feathers.
32 citations,
February 2018 in “Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy” Cosmetic residues on individual hairs can be identified and differentiated using ATR FT-IR microspectroscopy.
25 citations,
September 2018 in “Molecular Biology of the Cell” Blocking Wnt/β-catenin signaling with EGF receptor is necessary for proper hair growth.
16 citations,
January 2015 in “Forensic science international” The hair of two ancient Chilean mummies is well-preserved and contains high levels of heavy metals.
9 citations,
April 2006 in “American Journal of Pathology” SGK3 is essential for proper hair growth and health.
7 citations,
December 2020 in “ACS biomaterials science & engineering” Human hair keratins can form stable nanofiber networks that might help in tissue regeneration.
7 citations,
March 2019 in “Journal of cosmetic dermatology” African hair has the most lipids, while Caucasian hair is more hydrated and stronger.
August 2024 in “Cosmetics” K18® and Olaplex® both effectively repair bleached hair, improving its strength, smoothness, and overall health.
May 2024 in “International Journal of Cosmetic Science” Disulfide bonds are crucial for hair's strength, especially when wet.
December 2022 in “bioRxiv (Cold Spring Harbor Laboratory)” MicroRNA-205 helps hair grow by changing the stiffness and contraction of hair follicle cells.
January 2020 in “Indian dermatology online journal” Hair styling products can damage hair over time.
January 2006 in “Advances in developmental biology” The Hairless gene is crucial for healthy skin and hair growth.
277 citations,
June 2003 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” Epithelial-mesenchymal interactions control hair growth cycles through specific molecular signals.
92 citations,
August 2017 in “Proceedings of the National Academy of Sciences of the United States of America” Newborn mouse skin cells can grow hair and this process can be recreated in adult cells to potentially help with hair loss.
28 citations,
December 2018 in “Plant, cell & environment/Plant, cell and environment” A protein called PLC2 is important for the growth and development of plant roots influenced by auxin.
10 citations,
June 2001 in “International Journal of Cosmetic Science” Natural shampoos made in the lab conditioned hair better than commercial ones with chemicals.
2 citations,
July 2023 in “Cosmetics” Surfactants in shampoos and conditioners remove some but not all lipids from hair, and more research is needed to understand their full impact.
11 citations,
July 2014 in “Gene” The S250C variant in a gene may cause autoimmunity and immunodeficiency by impairing protein function.
September 2024 in “Journal of Cosmetic Dermatology” Quercetin-loaded nanoparticles protect human hair from UV-B damage.
27 citations,
November 2007 in “Genomics” Mutations in specific keratin genes cause improper hair structure in mice due to faulty keratin protein assembly.
2 citations,
June 2016 in “International journal of experimental pathology” Human skin has less GDNF and its receptor with age.
The document concludes that understanding hair's composition and the effects of treatments can lead to better hair care products.
15 citations,
April 2017 in “Cell Stem Cell” Some brain cancer cells avoid immune system detection, and certain treatments could target this to slow their growth; also, certain fat cell precursors help regenerate hair and skin after injury.
June 2021 in “bioRxiv (Cold Spring Harbor Laboratory)” KIF18B is important for correctly positioning cell division machinery in skin cells, affecting hair follicle development.
12 citations,
March 2019 in “Lasers in Surgery and Medicine” Low-level laser therapy improves hair growth and dermal papilla cell function.
April 2024 in “Advances in Redox Research” Human hair strength and health are linked to sulfur compounds that can be reduced by stress but improved with sulfur supplements.