The best way to use vinegar to remove lipstick stains is to combine it with salt. This formula is ideal for fresh lipstick stains but won’t work as well on dried-in ones. Mix one-part white vinegar (do not use brown vinegar) with one part salt to form a paste. Then, rub the paste onto the stain and allow it to work for 15 minutes. Next, wipe away the salt paste with a clean, damp cloth. If the stain remains, re-apply some salt paste, and leave for 30 minutes, wiping away with a cloth.