Biotex removes the ground-in dirt and grime that normal machine washing usually leaves behind. The Bleach Free powder gently softens and loosens even the most stubbon stains auch as stains of grass, milk, blood, egg, grease and chocolate. Bio-tex brightens without the use of of bleach. On Colors, the Bleach Free formulation is safe and just as effective. Ideal for handwashing because it soaks away dirt and stains at low temperatures. Do not soak silk, wool, leather or flame resistent fabrics.