8 citations
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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.
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.