I like the Wella Powder Lightener Tub. You get one pound of product that will last you forever! It provides up to 7 levels of lift, so if you have darker hair, it will speed the bleaching process up! Make sure to read the instructions on whatever bleach powder product you pick up. If you watch some bleaching videos online as well, that will help you master the process. I love this video by Brad Mondo-he guides you through all things at home dyeing.