Keep the bath water as hot as you can possibly stand it while doing H2O2. this will help to open the pores of the skin so that the oxygen can do what it does best.If you're going to use 3 cups of 35%H2O2 I would keep your hair out of the water if I were you. You may become a bleach blonde (maybe you want to be a bleach blonde?) Keep it away from your eyes as well. It can burn a lot. The skin is the largest organ of the body and largely misunderstood. A huge amount of toxins can be shed through the skin. Chickens excrete all their toxic waste through the skin.