Why choose Lead-B-Gone Skin Cleansing Wipes instead of soap and water? Simple. They've been proven to remove 98.8 percent of contaminants on their own, and 99.9 percent with a water rinse. Soap and water only remove 72 percent of contaminants. Use them to wipe down your hands, arms, face, neck and any working surfaces after cleaning your firearm or any other activity involving lead and other metal dust.