> Hydrogen peroxide at those concentrations can be pretty dangerous. What > about filtering through activated charcoal? > > Jay Jones > [log in to unmask] No doubt that it's dangerous! When I used it, I used to somehow get droplets splattered onto my skin, with the resulting little pure-white spots. Never noticed the splatters when they happened, but they always seemed to. The concentrated peroxide should never be used without adequate protective equipment, and I'd say a face shield would be included in that equipment. Liz--you wouldn't use the concentrated peroxide on hair! You'd lose hair, scalp and all, I suspect. I'd guess they use some dilution that's stronger than 3% but way more dilute than 30%. I'm a bit skeptical about the ability of charcoal to adsorb the color from wax, but it might work. Anybody ever try it? John E. Taylor III W3ZID | "The opinions expressed are those of the E-Mail: [log in to unmask] | writer and not of Rohm and Haas Company."