Abstract: The present invention relates to a cosmetic composition, which comprises a combination of at least two osmolytes chosen from the group comprising taurine or a derivative thereof, inositol, betaine and trehalose. This composition is intended for restoring, maintaining or reinforcing the moisturization of the skin and/or for protecting it against different types of stress and/or for preventing or retarding the appearance of the signs of aging of the skin, or for attenuating the effects thereof, or alternatively for promoting cell or tissue longevity.