An herbal preparation for stimulation of hair growth and control of hair fall, dandruff and infections thereof using herbaceous plants, Ageratum spp. At least one compound of plants, Ageratum spp. such as, for example, N,N-bis(trimethylsilyl)-2-phenyl-7-(trifluoromethyl)quinolon-4-amine, 3",4",5,6,7,8-hexamethoxyfla...