2 citations
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July 2013 in “Fashion business” This study found that keratin essence effectively protected hair structure against dye-induced damage, potentially improving coloring efficiency in damaged hair observed from a single individual.
3 citations
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August 2008 in “PubMed” This study found that digital perm treatments using sodium thioglycolate lotion led to the most significant reduction in protein content and greater hair damage compared to other methods and lotions.
May 2009 in “International Journal of Cosmetic Science” In this study, permanent waving treatments, especially those using lotion B and repeated procedures, were found to significantly damage hair protein content and physical properties.
January 2017 in “Deleted Journal” This study describes the advancements in hair transplant technology, emphasizing the improved understanding of hair biology and modern surgical techniques that enhance the natural and lasting outcomes of these procedures.
February 2026 in “Journal of the Korean Society of Cosmetology” This study found that the viscosity of silicone oil in hair treatments significantly affects wave curling performance and hair damage, with untreated and chemically treated hair showing different optimal viscosities.