October 2015 in “Cosmetic Dermatology” Hair straightening changes hair structure and can cause damage if done wrong, but improvements in the methods are expected to continue.
Hair coloring and bleaching can permanently break down hair protein and temporarily change its properties.
Transglutaminases help form strong hair by linking proteins, and can potentially alter hair properties.
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April 2025 in “Journal of Applied Polymer Science” Microneedles with green tea polyphenols improve diabetic wound healing.
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September 2018 in “Journal of colloid and interface science” Modified keratin binds better to hair, especially bleached hair.