A composition formula of hair blacking lotion, which is made by mixing Polygonum multiflorum extract, echinacea essential oil, panthenol, lemon essential oil, ginseng extract and white cone yeast at a predetermined ratio, and then added into a base liquid comprising flower essence and pure water, so as to make a hair blacking water that helps improve hair quality, and restores the hair color to black and to have refreshing texture.一種黑髮水的組成配方，係將一定比例之何首烏萃取液、伊蘭花精油、泛醇、檸檬精油、人參萃取液及白錐體酵母菌混和後，再加入由花精花波、純水混合所組成的基底液中，據以製得能夠改善髮質，使髮色恢復烏黑，質地清爽的黑髮水。
