November 2023 in “ACS Applied Polymer Materials” The new method extracts keratin from hair faster and better, and the resulting product improves blood clotting and wound healing, with potential for personalized treatments.
October 2023 in “Journal of Molecular Liquids” A new method using imidazole-based liquids efficiently extracts keratin from yak hair.
October 2025 in “Coloration Technology” Delipidised wool is brighter, dyes better, and is more eco-friendly.
8 citations
,
January 2009 in “Transactions of the Materials Research Society of Japan” Water-soluble wool keratin can protect human hair from damage during treatments.
29 citations
,
August 2011 in “PubMed” Polymeric pretreatments can significantly reduce hair breakage and damage from hot flat irons.
November 2025 in “Advanced Healthcare Materials” Charge-conversion chemistry improves hair-rebonding by enhancing penetration and strength.
28 citations
,
January 2016 in “RSC Advances” A non-toxic formula using polycarboxylic acids strengthens and improves hair.
3 citations
,
January 2007 in “Journal of health science” The enzymatic method can effectively identify chemical treatments on hair.
September 2010 in “International Journal of Cosmetic Science” Chemical treatments change hair surface properties, making it more hydrophilic and able to bind conditioners.
July 2023 in “Nature Reviews Chemistry” A new method strengthens hair without using harmful chemicals.
7 citations
,
August 2007 in “Journal of Biotechnology” December 2025 in “Biopolymers” Heat worsens damage in chemically treated hair, especially bleached and straightened hair.
8 citations
,
May 2020 in “International journal of biological macromolecules” Certain treatments can increase protein binding to natural hair but are less effective on permed hair.
3 citations
,
January 2009 in “Sen'i Gakkaishi” Using both TGA and DTDG in hair straightening reduces hair damage compared to using TGA alone.
August 2021 in “Han'gug miyong haghoeji/Journal of the Korean society of cosmetology” Using natural polyphenol cross-linkers like tannic acid and green tea extract in perm treatments improves curling and protects hair.
August 2023 in “Journal of Student Research” Human hair keratin mixed with rubber slightly improves its strength and biodegradability.
20 citations
,
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.
75 citations
,
November 1965 in “Textile research journal” Papain and bisulfite break down human hair by dissolving parts of it.
9 citations
,
January 1981 Nucleophilic reagents break down hair keratin, forming more lanthionine and lysinoalanine than in wool.
September 2019 in “University of the Arts London Research Online (University of the Arts London)” Plant oils and polymers can help protect African hair from damage during styling.
Chemical treatments weaken hair's thermal stability and structure.
11 citations
,
December 2011 in “Revista Brasileira de Farmacognosia” The seeds of Abrus precatorius, when processed, can prevent hair loss more effectively than common treatments.
1 citations
,
April 2021 in “Han'gug miyong haghoeji/Journal of the Korean society of cosmetology” Aspartic acid at 0.75% makes perms more effective and less damaging to hair.
21 citations
,
January 2017 in “MethodsX” Methanol is better than isopropanol for washing grizzly bear hair to measure cortisol.
November 1968 in “Journal of the American Pharmaceutical Association”
August 2005 in “Microscopy and Microanalysis” Polymethylene wax in hair relaxers makes hair smooth and shiny with less damage.
1 citations
,
January 2004 in “China Surfactant Detergent & Cosmetics” The compound improves hair conditioning in shampoos.
11 citations
,
January 2006 in “Journal of the American Leather Chemists Association” Oxidizing agents break down keratin in wool and hair, causing swelling and increased solubility.
December 2018 in “Dermatologic Surgery” Using a 25% trichloroacetic acid peel improves dermabrasion results in vitiligo surgery.
October 2021 in “Authorea (Authorea)” New hair perming method using tyrosine is gentler and can be done with a blow-dryer.