The present invention relates to oxidizing hair colourant compositions comprising selected oxidative hair dyes and diethylene-triamine-penta-(methylenephosphonic acid). The compositions provide improved hair colour tonality, root to tip evenness and reduced wash fade over time.
                            本发明涉及氧化染发剂组合物,其中包含选定的氧化染发剂和
二乙烯三胺五甲叉膦酸。这种组合物能改善头发的色调、发根到发梢的均匀度,并减少洗发后的褪色。