Cosmetic use of at least one plant of species Rubus idaeus(I) and/or its extract as an agent to reduce or prevent whitening of hair and/or body hair, where the plant or its extract is applied topically on the skin or its appendages, is claimed. Independent claims are included for: the extract of at least one plant of species Rubus idaeus; and (2) cosmetic treatment comprising topically applying the extract of Rubus idaeusor a composition containing the extract on the skin or its appendages. ACTIVITY : Dermatological. MECHANISM OF ACTION : None given.