A Comparison of Dyeing Efficacy Between Hair-Oxidation-Based and Hair-Coating-Based Shampoos for the Treatment of Gray Hair

June 2023 in “ Skin Research and Technology ”

You Na Jang, Joon Seok, A Yeon Park, Woo Geon Lee, Jung Min Lee, Yu Jin Kim, Su‐Young Kim, Kwang Ho Yoo, Jung Ok Lee, Beom Joon Kim

hair-oxidation-based shampoos hair-coating-based shampoos gray hair treatment color retention moisturization tensile strength elasticity cuticle damage radical production

TLDR Hair-coating shampoos dye better initially, but hair-oxidation shampoos keep color longer and may damage hair more.

The study compared hair-oxidation-based and hair-coating-based shampoos for gray hair treatment, revealing that hair-coating shampoos provide a stronger initial dyeing effect and reduce surface roughness, while hair-oxidation shampoos offer better color retention and moisturization. Both types improve tensile strength and elasticity, but hair-oxidation shampoos can cause more hair damage, including cuticle damage and radical production. Users should choose based on their priorities between dyeing effects and potential hair damage.

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Research cited in this study

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