The invention relates to an extract of the aerial parts ofLawsonia inermis, as well as its preparation method and the extract that can be obtained by said method. The invention also relates to a cosmetic dye composition comprising such an extract. The invention finally concerns a cosmetic method for dying keratin fibers comprising the application of such a composition.本發明有關指甲花之地上部分的萃取物，以及其製備方法和可藉由該方法獲得的萃取物。本發明亦有關包含此一萃取物的美妝染料組成物。本發明最終涉及用於染色角蛋白纖維的美妝方法，包含此一組成物的施用。
