April 2019 in “Digital Library of Theses and Dissertations (Universidade de São Paulo)” Hair straightening at pH 1.0 improves alignment but weakens hair more than pH 2.0.
December 2025 in “Cosmetics” The bio-based complex effectively repairs and protects chemically damaged hair.
December 2025 in “Biopolymers” Heat worsens damage in chemically treated hair, especially bleached and straightened hair.
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August 2022 in “Chemical engineering journal advances” Scientists made human hair magnetic by coating it with special nanoparticles.
September 2019 in “University of the Arts London Research Online (University of the Arts London)” Plant oils and polymers can help protect African hair from damage during styling.