The present invention relates to the cosmetic use of phytosterols to protect and / or restore the skin microbiota and / or to prevent and / or reduce unsightly and / or unpleasant and / or uncomfortable manifestations of the alteration of the skin microbiota. It also relates to a cosmetic care process comprising the topical application to at least one skin area, advantageously of the scalp, of phytosterols to protect and / or restore the cutaneous microbiota and / or to prevent and / or reduce unsightly and / or unpleasant and / or uncomfortable manifestations of the alteration of the skin microbiota. Finally, it relates to phytosterols for their use in the treatment and / or prevention and / or reduction of the occurrence of a pathology associated with an alteration of the skin microbiota, in particular chosen from the group consisting of acne, psoriasis and bacterial and / or fungal infections, ulcers, herpes, boils, folliculitis, abscesses, sycosis, impetigo, erythyma erysipelas, yeast infections such as candidiasis or dermatophytosis such as ringworm and / or scabies pigment and / or acne scars and their combinations and / or in the treatment and / or prevention of superinfection of wounds and / or in the prevention of spots. La présente invention concerne l'utilisation cosmétique de phytostérols pour protéger et/ou restaurer le microbiote cutané et/ou pour prévenir et/ou réduire les manifestations inesthétiques et/ou désagréables et/ou inconfortables de l'altération du microbiote cutané. Elle concerne en outre un procédé de soin cosmétique comprenant l'application par voie topique sur au moins une zone de peau, avantageusement du cuir chevelu, des phytostérols pour protéger et/ou restaurer le microbiote cutané et/ou pour prévenir et/ou réduire les manifestations inesthétiques et/ou désagréables et/ou inconfortables de l'altération du microbiote cutané. Enfin elle concerne les phytostérols pour leur utilisation dans le traitement et/ou la prévention et/ou l
