The disclosed eutrophicating product for cosmetic use, comprises: a base compound having a nourishing and/or emollient and/or hydrating and/or moisturising and/or protective action spores of probiotic bacteria mixed with the base compound it further comprises bacteriophage elements mixed with the base compound and having bactericide activity on predetermined undesired bacterial species present, the bacteriophage elements, in cooperation with the spores of probiotic bacteria, being able to carry out a combined and synergic action against damaging micro-organisms. Also disclosed is the use of a eutrophicating product for treatment and protection of the skin and adnexa thereof.
