▎ 摘　　要

NOVELTY - Treating a keratin-based substrate, involves applying a cosmetic composition to a keratin-based substrate to form a coating of the composition on it, and drying the coated keratin-based substrate, where the composition comprises graphene oxide (GO) and/or reduced graphene oxide (r-GO) as graphene-based material, a water dispersible polymer, and water, and the composition does not comprise the water dispersible polymer covalently bound to the graphene-based material. USE - Method for treating keratin-based substrate, preferably hair e.g. human hair with hair coloring composition. ADVANTAGE - The method provides treated hair with increased tensile properties, and less damage.