TriMedica PureMSM Shampoo - 8oz For your healthy skin and hair, PureMSM is the right choice - every time! Amazing natural formulas that leave hair softer, fuller and shinier than ever! TriMedica's MSM shampoo is thick, concentrated and adds body and life to all types of hair. Also removes unpleasant chlorine smell from your hair and skin. For best results follow with PureMSM conditioner.