Hair Efficacy of Botanical Extracts
July 2012
in “
Journal of Applied Polymer Science
”
TLDR Botanical extracts can protect and repair bleached hair.
The study investigated the effects of three botanical extracts on chemically damaged hair, specifically hair that had been bleached. The research demonstrated that these botanical actives improved the mechanical properties of the hair, reduced fiber permeability, and increased the crystalline material within the fibers. The botanical treatments, which included proteins and peptides, sulfated polysaccharides, or a combination of polysaccharides, were effective in protecting and repairing hair fibers. This suggested that such botanical extracts could be beneficial in hair cosmetics aimed at repairing and preventing damage from treatments like bleaching and perming.