The oral cosmetic use of a combination of active agents, including at least one polyunsaturated fatty acid and one carotenoid, for improving hair quality and more particularly hair quality at the level of a zone having grown before said use of a combination of said active agents. This combination of active agents may also include, by way of additional active agent, vitamin E, vitamin C or combinations thereof. The combination of active agents is preferably used in a cosmetic composition intended for oral administration, such as a food supplement.
