The present invention relates to the use of a composition comprising at least one non-fermented rice peptidic hydrolyzate as an active agent for slowing down and limiting hair loss and/or stimulating hair growth. Said composition is also intended to protect the follicular adult stem cells as well as their specific microenvironment. In addition, the composition according to the invention combats the aging and particularly the photoaging of hair. Lastly, the present invention relates to several non-therapeutic treatment methods utilizing said composition.