Hedrin treat go head lice spray with revolutionary activdiol technology is a quick treatment for head lice that is completely fuss free this water based treatment is incredibly easy to use and rinses from the hair in no time without leaving any greasy residue while dry it remains on the childs hair while they continue to play go to school and even while they sleep treat go mousse requires just 2 applications 7 days apart the hedrin range is proven in clinical trials to be incredibly