Cosmetic use of at least one plant of the genus Caesalpinia(I) and/or its extract and/or a composition containing (I) to reduce, delay, prevent whitening of hair and/or body hair, is claimed. Independent claims are included for: (1) the extract of at least one plant of the genus Caesalpinia; (2) a method of cosmetic treatment, comprising administering (I) or the composition to a subject; and (3) combination product for simultaneous, separate or sequential use, comprising at least a component comprising (I), and a second component comprising an additional active agent for promoting natural pigmentation of hair or reducing whitening, comprising pomegranate ( Punica granatum), blackberry, raspberry, grape, walnut, Terminalia belerica, Terminalia chebula, Terminalia arjunaand Fragaria. ACTIVITY : Dermatological; Anabolic. MECHANISM OF ACTION : None given.