... food additive, EDTA2Na, amid acid, Chinese medicine natural pigment, water.[Using method]1.Wash scalp, hair grease repeatedly ... , use towel to dry the hair to 80%.3.Use 2# pharmacy to smudge each hair evenly, ... pharmacy for 10 minutes, and 2#, 3# pharmacy for 5 minutes.3.If the skin is partly contaminated, ... do allergy testing before use, smudge 1#, 2#, 3# separately on theskin behind the ears, 24 hours ...