Hydrogen ---, hair bleach (8)
I believe the answer is:
peroxide
(Other definitions for peroxide that I've seen before include "Powerful bleaching agent" , "See 8" , "Chemical used to bleach hair" , "Hair treatment" , "Hair-bleaching fluid" .)
I believe the answer is:
peroxide
(Other definitions for peroxide that I've seen before include "Powerful bleaching agent" , "See 8" , "Chemical used to bleach hair" , "Hair treatment" , "Hair-bleaching fluid" .)