2 citations
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December 2019 in “Textile Research Journal” L-cysteine and ultrasound successfully improved rabbit hair fibers for industrial use.
November 2025 in “Eurasian journal of applied biotechnology” Combining L-cysteine, NAC, and a MET inhibitor significantly kills cervical cancer cells.
March 2021 in “Juniper Online Journal Material Science” Energy healing treatment improved L-cysteine's stability, solubility, bioavailability, and shelf-life.
January 2019 in “Journal of cosmetology & trichology” L-Cystine and L-Cystine with Kera-Diet® safely improved hair and nail quality in healthy women.
3 citations
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January 2017 in “Journal of cosmetology & trichology” The food supplement with L-cystine, Serenoa repens extract, and biotin safely reduced hair loss and improved hair growth in men and women.
September 2024 in “Journal of the American Academy of Dermatology” The supplements improved hair density and reduced hair loss.
July 2024 in “Skin Appendage Disorders” The supplement significantly improves hair density and appearance in people with hair loss.
June 2023 in “Italian journal of dermatology and venereology” The oral supplement improved hair loss in patients with telogen effluvium.
51 citations
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January 2004 in “European Journal of Cell Biology” Human cathepsin V can replace mouse cathepsin L to maintain normal skin and hair in mice.
10 citations
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November 2018 in “Genetics in medicine” Lack of cystatin M/E causes thin hair and dry skin.
4 citations
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December 2013 in “Acupuncture and related therapies” N-acetyl-cysteine shows promise in treating various diseases and may improve skin and hair conditions, but more research is needed on dosages and long-term effects.
May 2018 in “International journal of clinical obstetrics and gynaecology” N-acetyl cysteine and metformin both improved fertility in women with PCOS equally, but N-acetyl cysteine had fewer side effects.
October 2021 in “QJM: An International Journal of Medicine” N-acetyl-cysteine improves hair growth and is safe for treating early male hair loss.
32 citations
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January 1966 in “Archives of Dermatology” The method accurately measures hair growth with minimal risk and is better than other techniques.
7 citations
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January 1966 in “Archives of Dermatology” The method accurately measures hair growth with minimal risk and is better than other methods.
6 citations
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January 1998 in “Journal of applied cosmetology” 35 citations
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September 1994 in “Journal of Investigative Dermatology”
September 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” Not having enough cystatin M/E protein causes less hair growth and dry skin.
January 2007 in “Leather Science and Engineering” 1 citations
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January 2004 in “Adelaide Research & Scholarship (AR&S) (University of Adelaide)” SPARC likely aids in tissue remodeling during the hair cycle, not in starting new hair growth phases.
1 citations
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January 1971 in “Acta dermato-venereologica” Mice hair follicles take in the amino acid cystine.
4 citations
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December 1962 in “European journal of endocrinology” Alloxan diabetes, methylthiouracil, cortisone, and adrenaline affect how white mice hair follicles use glucose and cystine and their cell division.
226 citations
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January 2006 in “International review of cytology” Keratin-associated proteins are crucial for hair strength and structure.
191 citations
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November 1959 in “Annals of the New York Academy of Sciences” Hair and wool have complex microscopic structures with microfibrils and varying cystine content.
140 citations
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August 2010 in “Pigment Cell & Melanoma Research” We know a lot about mouse hair color, but not much about human hair color differences.
73 citations
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June 2006 in “Animal genetics” The FGF5 gene determines hair length in dogs.
65 citations
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September 2014 in “BMC genomics” Different hair types in mammals are linked to variations in specific protein genes, with changes influenced by their living environments.
62 citations
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January 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” A second domain of high sulfur KAP genes on chromosome 21q23 is crucial for hair structure.
48 citations
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July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair growth is controlled by specific gene clusters and proteins, and cysteine affects hair gene expression in sheep.