Improved Humidity-Resistant Hair Straightening Using a Cysteamine-Derived Amino Acid Compound
July 2026
in “
Preprints.org
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Studysummary In this study, incorporating a novel amino acid compound into a hair-straightening formulation improved humidity-resistant straightening and enhanced the surface and mechanical properties of hair fibers, including increased bending stiffness, reduced friction, and better shape retention under high temperature and humidity conditions.
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