Use Pit Stop to remove collar and armpit stains Formulated to dissolve and remove sweat stains and deodorant stains from white clothing Works best on stains not previously treated with bleach Pit Stop will work on colored clothing Test area to make sure no color disruption Scrub Pit Stop into stains and let sit for 30 minutes then place in washer Formulated for use as a sweat stain remover antiperspirant remover pit stain remover and armpit stain remover