18 citations
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June 2016 in “Clinical and Experimental Dermatology” Increasing isoleucine intake improved skin and health issues in an infant with maple syrup urine disease.
138 citations
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November 1977 in “Biochimica et Biophysica Acta (BBA) - Proteins and Proteomics” January 2004 in “Drug Development and Industrial Pharmacy” GI197111X is best dissolved in Capmul MCM for trials.
118 citations
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June 1993 in “Journal of Biological Chemistry” Human and mouse TGase3 enzymes are similar but differ near the activation site, crucial for their function in skin and hair development.
100 citations
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December 2002 in “Journal of biological chemistry/The Journal of biological chemistry” Researchers mapped and categorized specific keratin-associated protein genes on human chromosome 21q22.1.
October 2021 in “Authorea (Authorea)” New hair perming method using tyrosine is gentler and can be done with a blow-dryer.
1 citations
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July 2024 in “International Journal of Dermatology Venereology and Leprosy Sciences” Cysteine strengthens hair, and glutamine fuels hair growth.
Using Arabidopsis thaliana to produce KGF-2 is a promising, cost-effective method for hair growth and wound healing products.
54 citations
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January 1984 in “Molecular and Cellular Biochemistry” 11 citations
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January 1989 Two patients had a unique form of trichothiodystrophy with reduced high-sulfur proteins in their hair.
1 citations
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January 1996 Cysteine and arginine are essential for hair growth and thickness.
24 citations
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July 1979 in “Archives of Dermatology” Patients with renal disease may develop vitamin A toxicity even with low-dose supplements.
83 citations
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July 2008 in “Current Opinion in Chemical Biology” The document concludes that understanding sulfation biology is crucial for creating treatments due to its importance in biological functions and disease.
April 2015 in “Journal of Nutritional Therapeutics” Looser dietary restrictions can improve growth and reduce illness in methylmalonic acidemia patients.
17 citations
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January 2016 in “Journal of Drug Delivery” PEG and keratin scaffolds can effectively deliver protein drugs by controlling release based on pH levels.
3 citations
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April 2015 in “Current problems in dermatology” A more sensitive assay was developed to detect enzyme activity converting arginine to citrulline in hair follicles.
November 2025 in “JDDG Journal der Deutschen Dermatologischen Gesellschaft” Restoring phenylalanine levels improved skin and hair symptoms in a PKU infant.
19 citations
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April 2023 in “Antibiotics” Azelaic acid in a special gel is more effective against skin fungi than regular azelaic acid.
23 citations
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June 2010 in “Journal of Investigative Dermatology” A mutation in the Soat1 gene causes hair structure defects and other health issues in AKR/J mice.
June 2023 in “Skin Research and Technology” The supplement with amino acids, iron, selenium, and marine hydrolyzed collagen improved hair growth more than drug treatment alone, with most people tolerating it well.
43 citations
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April 2005 in “The Journal of Dermatology” Biotin supplements improved skin and hair in a biotin-deficient infant on amino acid formula.
1 citations
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June 2015 in “Journal of anatomy” A compound named ZCZ90 can increase muscle spindle firing, potentially helping treat muscle spasms and hypertension.
Transglutaminases help form strong hair by linking proteins, and can potentially alter hair properties.
20 citations
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December 2012 in “Journal of molecular structure” The study found that thioglycolic acid breaks down hair bonds more consistently than l-cysteine, which is less damaging to hair.
5 citations
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May 2024 in “Molecules” Glycyrrhetinic acid from licorice may help treat acne by reducing inflammation and oil production.
1 citations
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January 1971 in “Acta dermato-venereologica” Mice hair follicles take in the amino acid cystine.
April 2024 in “Current research in nutrition and food science” Taking an amino acid supplement improved skin, hair, and nail health in women.
February 2026 in “Macromolecular Bioscience” Keratin-based hydrogels with calcium are effective for delivering anti-fibrotic drugs.
April 2017 in “Journal of Investigative Dermatology” Triptolide effectively and safely reduces actinic keratosis lesions in mice.