Fermented Grapeseed Oil Repairs Chemically Damaged Hair Via Enhanced Permeability Mechanisms

The study explores the benefits of fermented grapeseed oil (F-GO) for repairing chemically damaged hair, highlighting its superior penetration and restorative properties compared to non-fermented oils. F-GO enhances hair permeability and mechanical strength by increasing small molecule alcohols during fermentation, which open hair cuticles and facilitate oil penetration. It improves thermal resistance, reduces porosity, and forms a protective layer against UV light and surfactants. F-GO also strengthens hair by forming hydrogen bonds with keratin, increasing break load by 18.73% and total work by 30.77%. These findings suggest F-GO as a promising agent for repairing and protecting hair from bleaching and dyeing damage.