MS: DIY Underarm Stain Remover: 1 part Dawn (or any dishwashing liquid, I assume), 2 parts hydrogen peroxide, then add baking soda to create a paste. Use brush to work it in, and let it sit for 1 hour.
remove pit stains using dawn, hydrogen peroxide and baking soda. The mixture I scrubbed on with the brush above was 1 tsp. Dawn dishwashing detergent, tablespoons of hydrogen peroxide, and a couple tablespoons of baking soda.
Goodbye to Yellow Armpit Stains: one part Dawn dishwashing liquid + two parts hydrogen peroxide + some baking soda. Use a small laundry brush to work the mixture into the stain for a few minutes. Let sit for an hour or so then launder as usual.
How to get rid of underarm stains in shirts and prevent them Crush 8 – 10 Aspirin pills in a small bowl. Add just enough water to make a paste. Work the paste into the stain. Let it sit on the stain overnight Wash as you normally do.
The Prudent Pantry: removing perspiration stains. Combine one part Dawn dish soap with two parts hydrogen peroxide. Add enough baking soda to make a paste. Rub it into the perspiration stain and let it sit for an hour before washing.