an externally - used solution containing chlorine dioxide for promoting hair growth is composed of chlorine dioxide or its precursors , ph regulators , medical solvents and plant extract in a certain weight ratio . the product may take the forms of a single solution containing chlorine dioxide or several solutions containing a chlorine dioxide precursor . the safety and effective oxidation sterilization and tissue regeneration ability of chlorine dioxide are introduced into the solution system for promoting hair growth , and the steps of removing hair loss factors , stimulating the growth of hair follicles , anti - inflammatory and anti - dandruff are done synchronously . complemented medical solvents and plant extracts will change alopecia environment .