How to remove stains on white shirts. This works as a stain remover IF the clothing has not been through the wash cycle yet. If the item has already been laundered you may have some luck by repeating the step and setting out in the sun. the stain remover mixture as consisting of one part Dawn dishwashing liquid mixed with two parts HYDROGEN PEROXIDE. Then add some baking soda for scrubbing power.
Laundry stain remover, including yellow armpit stains: 1 part dish soap, 2 parts hydrogen peroxide. Scrub with baking soda as needed. Let stand until stain disappears.
Yellow armpit stain remover from white shirts: 1 part dishsoap + 2 parts Hydrogen Peroxide. Tougher stains may need baking soda added. Scrub or just let sit for 1 hour prior to washing. GREASE STAINS from colored clothing: 1 tsp dishsoap, 3-4 Tbsp H.P., 2 Tbsp baking soda. Scrub-Rest-Wash.
How to make a white undershirt (with nasty armpit stains) or white cami tank top look like new again! Use one part Dawn dishwashing liquid mixed with two parts HYDROGEN PEROXIDE, and if you're going to scrub the stain with a brush you can add a little baking soda for the scrubbing element. Leave on stain for about an hour, & throw in the laundry.