January 2013 in “Transactions of the Materials Research Society of Japan” In this study, carboxymethylalanyl disulfide keratin was shown to effectively prevent hair damage during repeated bleaching and permanent waving treatments.
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January 2009 in “Transactions of the Materials Research Society of Japan” This study found that CMAD wool keratin may protect human hair from damage during repeated bleaching and permanent waving treatments.
September 2023 in “Family practice” This study found that among 52 classification tools on the Clinical Knowledge Summaries website, 46% lacked strong guidance for their use in managing conditions, suggesting that nearly half of the tools may not be useful for clinical decision-making.