 28 citations
,
  December 2011   in “Biocatalysis and biotransformation”
           28 citations
,
  December 2011   in “Biocatalysis and biotransformation”    PDI helps restore over-bleached hair's strength and structure by attaching special peptides.  
      8 citations
,
  January 2016   in “Journal of fiber science and technology”
           8 citations
,
  January 2016   in “Journal of fiber science and technology”    Bleaching hair increases cysteic acid levels in a predictable way.  
      4 citations
,
  August 2014   in “Journal of molecular structure”
           4 citations
,
  August 2014   in “Journal of molecular structure”    Chemical treatments on bleached black hair change its internal structure by breaking and reforming bonds, and treatments with hydrolyzed eggwhite protein help repair it.  
      August 2024   in “Cosmetics”
           August 2024   in “Cosmetics”    K18® and Olaplex® both effectively repair bleached hair, improving its strength, smoothness, and overall health.  
      36 citations
,
  October 2014   in “Langmuir”
           36 citations
,
  October 2014   in “Langmuir”    Bleaching hair removes its protective top layer and exposes more hydrophilic groups, changing its chemical surface and affecting how it interacts with products.