The invention relates to a product for preventing or treating hair greying, including an extract of the Radix Polygoni Multiflori root and an active ingredient enhancing or maintaining hair growth packaged together in a single composition or else separately in two separate compositions, the composition including the extract of the Radix Polygoni Multiflori root being exclusively for topical application and not for oral administration. The invention also relates to the use thereof and to methods enabling the administration thereof.