Our laundry cleaners contain bioproteases and surfactants. It can effectively break down hard-to-clean sweat, blood and other protein stains on cuffs and necklines without damaging the fabric. Its use method is very simple: drop the product directly on the stain, let it fully penetrate for 5-10 minutes, and then rub the oil spot with both hands. When the oil stains float, put the washing powder into the clean water, soak for a period of time, and then rub the oil stains on the clothes. And do not hurt clothes, do not hurt hands, skin friendly, not irritating, more care for clothes.