The invention relates to the use, as an active ingredient, of at least one substance that promotes the deglycation of AGEs for preparing a composition, especially for limiting the presence of AGEs in a tissue. The invention particularly relates to the use of such a substance for preparing a composition intended to prevent and/or combat a reduction in flexibility and/or plasticity and/or elasticity and/or functionality of a tissue, and/or to prevent and/or combat the ageing of a tissue, by promoting the deglycation of AGEs in the tissue, said tissue preferably being the skin, or the tissue wall of a blood vessel or of an organ.