Add BIZ Liquid to every laundry load to boost the cleaning power of your detergent and eliminate tough stains. Remove blood stains and coffee stains easily. For pre-treating small stains, we recommend using BIZ liquid. Just pre-treat stains directly with BIZ liquid by wetting the area with warm water and applying Biz. Rub gently and wait 5-10 minutes then wash as usual. It is convenient, easy to apply, and safe for colors.