52 citations
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February 2005 in “Biopolymers” In this study, chemical treatments during permanent hair straightening were found to randomize proteins in the cortex, aiding in the reconnection of disulfide bonds during oxidation.
This study found that, compared to oxidative treatments, reductive perm-waving more severely impacts the intermediate filaments in European human hair, while both treatments alter denaturation kinetics in a first-order manner.
July 2023 in “Drug testing and analysis (Print)” Homemade hair treatments can significantly lower drug levels in hair, possibly causing false-negative drug tests.
August 2023 in “Journal of Health and Beauty” This study found that the newly developed hair product K-30 increased both protein content and weight in chemically damaged hair to levels similar to healthy hair, unlike traditional products that only temporarily improve texture.
This study found that a hair treatment cream using keratin protein from chicken feathers effectively improved damaged hair, particularly by repairing the surface layer.
