One 18 count pouch of OxiClean Color Boost Color Brightener plus Stain Remover Power Paks Contains active oxygen power to reach deep into fabric fibers to quickly and safely break up and remove stains Color safe brightener has a built-in optical brightener that reveals vibrant colors and restores radiant whites The most convenient way to do laundry no mess, measuring or spills How To Use Presoak For best results, always presoak stains. Add 1 Power Pak to 1 gallon of the warmest water allowable for your fabric (see garment care instructions). Do not open Paks. Mix well to dissolve the Pak and add item. Soak 1-6 hours, wash as usual with detergent and OxiClean. For Brighter Colors & to Help Remove Stains in EVERY Load (in-wash). Add 1 Power Pak and detergent before adding laundry to the washing machine. For High Efficiency (HE) Machines, place 1 Pak directly into the drum, then add laundry. Some heavily soiled loads may require 2 Paks for best results. Safe for all loads. Enjoy bright, vibrant colors that help keep your clothes looking like new with OxiClean Color Boost Color Brightener + Stain Remover!