Effects of Hydrolyzed Keratin Treatment on the Repair of Damaged Hair

August 2023 in “ Journal of Health and Beauty ”

Tae Young Kim

hydrolyzed keratin K-30 bleaching perming dyeing Semimicro-Kjeldahl method keratin treatment

TLDR K-30 treatment restores protein and weight in damaged hair, making it similar to healthy hair.

The study "Effects of Hydrolyzed Keratin Contained Treatment on the Repair of Damaged Hair" aimed to improve the condition of damaged hair by increasing its protein content through a newly developed hair treatment product. The protein content of hair was analyzed using the Semimicro-Kjeldahl method. The study found that after bleaching, perming, and dyeing, the weight and protein content of the hair decreased by 15-24%, confirming that hair damage occurs when hair is chemically treated. The developed product, K-30, was applied one, three, and five times on hair damaged by bleaching, perming, and dyeing. Unlike commercially available products, the protein content and weight of hair treated with K-30 increased by about 20% compared to the damaged hair. The study concluded that when damaged hair was treated with K-30, both protein content and hair weight were restored to levels similar to healthy hair.

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in Treatment 6 upvotes 4 years ago

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research Effect of Surfactant Type on the Dyeability and Color Resistance of Semi-Permanent Basic Hair Dye

January 2023 in “Fashion and textiles”

Cationic and nonionic surfactants provide better color intensity and resistance for semi-permanent hair dye than anionic surfactants.