ECOBIOTYS^® is an active ingredient bio-inspired by the regulating capacity of the microbiota of floral nectar, the Nectarobiota^®. Obtained from the yeast Metschnikowia reukaufii, isolated from the porcelain flower Hoya carnosa, ECOBIOTYS^® specifically rebalances the microbiota of mature skin by reinforcing the immune and mechanical barriers of the skin and acting on the distribution of bacterial communities. The quality of the skin barrier is thereby improved and the complexion is enhanced. This rebalancing and protective active is intended for use in all care products for mature skin.