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Related Experiment Video

Updated: Sep 18, 2025

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A Photo-Crosslinked Casein-Tannic Acid System for Enhanced Hair Protection: A Green Chemistry Approach.

Sujin Kyung1, Won-Gun Koh2, Hyun Jong Lee1

  • 1School of Chemical, Biological and Battery Engineering, Gachon University, 1342 Seongnam-daero, Seongnam-si 13120, Republic of Korea.

Polymers
|June 27, 2025
PubMed
Summary

This study introduces a sustainable hair coating made from casein proteins and tannic acid. The eco-friendly treatment enhances hair strength by 21% using blue light, offering a natural protective solution.

Keywords:
caseinhair protectionphoto-crosslinkingsustainable cosmeticstannic acid

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Area of Science:

  • Materials Science
  • Biochemistry
  • Cosmetic Science

Background:

  • Hair is susceptible to daily damage, requiring effective and sustainable protective solutions.
  • Conventional hair treatments often lack environmental sustainability.

Purpose of the Study:

  • To develop an eco-friendly hair protective coating using natural ingredients.
  • To assess the efficacy of casein-tannic acid crosslinked coatings for hair protection.

Main Methods:

  • Casein proteins were crosslinked with tannic acid using riboflavin phosphate-mediated photo-initiation.
  • The coating was applied to hair and crosslinked via blue light irradiation.
  • Rheological, FTIR, SEM, and mechanical analyses were performed to characterize the coating and its effect on hair.

Main Results:

  • Optimal network formation and mechanical stability were achieved with 0.05% tannic acid.
  • The coating demonstrated successful integration with the hair surface.
  • Hair tensile strength increased by approximately 21% with preserved elasticity, showing balanced mechanical property enhancement.

Conclusions:

  • The developed casein-tannic acid coating provides effective, sustainable hair protection.
  • This natural, food-grade approach offers a promising alternative to conventional hair care products.
  • The mild processing conditions align with the demand for environmentally conscious cosmetic solutions.