September 2023 in “International journal of molecular sciences” Pinus densiflora extract may help improve memory and reduce brain inflammation.
19 citations
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November 1971 in “Clinica Chimica Acta” The document concludes that measuring γ-glutamyl transpeptidase activity is more accurate with a higher substrate concentration and using diluted acetic acid to stop the reaction.
Limbal Mesenchymal Stem Cell Secretome might help heal eye injuries by reducing inflammation and promoting tissue repair.
69 citations
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January 2009 in “Advances in Materials Science and Engineering” Wool keratin is reactive, biocompatible, biodegradable, and can model keratin from other sources.
9 citations
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January 1981 Nucleophilic reagents break down hair keratin, forming more lanthionine and lysinoalanine than in wool.
75 citations
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November 1965 in “Textile research journal” Papain and bisulfite break down human hair by dissolving parts of it.
3 citations
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June 2011 in “Clinical Cosmetic and Investigational Dermatology”
12 citations
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October 1954 in “Textile Research Journal” Hair absorbs alkali bromide salts and water, affecting its structure, with absorption decreasing at higher temperatures.
19 citations
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March 1961 in “Nature” A fatty acid/protein complex in human hair helps protect it from damage.
4 citations
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May 2014 in “PubMed” Monoethanolamine-based hair colorants can cause more damage to hair than ammonia-based ones.
8 citations
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July 2012 in “Annals of biomedical engineering” Hair absorbs molecules differently based on their size, charge, and love for water, and less at higher pH; this can help make better hair products.
3 citations
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November 2017 in “International Journal of Cosmetic Science” Solute binding to hair keratin is mainly driven by hydrophobic interactions and changes with pH.
18 citations
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July 2015 in “Journal of cosmetic dermatology” Straightening and coloring hair, especially with sodium hydroxide, greatly increases protein loss.
30 citations
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January 2009 in “The scientific world journal/TheScientificWorldjournal” Hair is hard to dissolve because of its complex proteins, but certain solvents that break specific bonds and hydrate can do it.
13 citations
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September 2017 in “International Journal of Cosmetic Science” Thioglycerol treatment at pH 9.0 with ammonia causes less hair damage and better waving than thioglycolic acid.
September 2018 in “Cosmetics” Inositol and arginine solutions improve hair follicle health and turnover.
January 2025 in “The Analyst” Calcium oxalate was found in human hair and could help detect certain health conditions.
13 citations
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March 2020 in “Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy” Alopecic hair has more irregular structures and chemical changes than normal hair, reducing its strength.
13 citations
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September 2020 in “Sensors” Hair follicles have a pH gradient, increasing towards the root.
2 citations
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January 1981
14 citations
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January 1996 in “Journal of Forensic Sciences” Hair can absorb and transfer opiates when soaked in water, with damaged hair absorbing more.
Calcium hydroxide in an ayurvedic product caused hair breakage.
4 citations
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January 2007 in “Sen'i Gakkaishi” Permed hair degrades faster and shows more damage after protease treatment compared to untreated hair.
December 2023 in “ACS Sustainable Chemistry & Engineering” Keratin can be successfully taken from human hair using a mix of choline chloride and ethanolamine.