No problem- it's a common misconception. Yes, PACKAGED hair dyes contain a peroxide content of 40% or more. It still needs an activator in order to bleach hair. Please note, it lightens hair, but doesn't actually 'bleach' it the way people think it does. It does not make it disappear or turn transparent. I have a cosmetolgoy license and have worked in a pharmacy and a health-food store. The peroxide mentioned in this thread was supposedly "HYDROGEN PEROXIDE", which is a completely different thing, and cannot lighten hair like commercially mixed hair colorings can- unless mixed with a developer as well. The hydrogen peroxide mentioned did not have a 'developer' with it. The hydrogen peroxide mentioned is almost exclusively used to disinfect- to kill bacteria on cuts and scratches.
Hydrogen peroxide, even at 40% or more WILL NOT remove blood stains to the naked eye. It will not. It is often used to disinfect items that have gotten blood on them because it kills bacteria related to blood. I can cut my finger right now, get blood on a towel, pour 50% or higher hydrogen peroxide on that blood, and it will not disappear. It will, however, kill any germs on the towel from the blood. It will dilute the blood a little. It will not bleach it out.
As a cosmetologist, who has seen people try to bleach their hair with color kits, as well as being a person who uses henna, I absolutely bet that Joran used henna on his hair. If there was hydrogen peroxide at the crime scene or in his possession, I will bet it was used to disinfect wounds/scratches, like to his hand, that he sustained while beating Stephany. NOT to get rid of blood stains in the room. According to the reports of how much blood there was, and even if it would work (which it does not), he'd need QUARTS of it, not one small brown bottle. I have no doubt he probably tried to buzz his hair off when he saw the ridiculous orange color. Henna is very hard to use correctly without looking like Bozo the clown. Not only that, but most of the henna people buy now is mixed with other plants and is not 'true' henna. If you see henna at the store, and they offer it in different 'shades', it is not true henna. You can google that. The box I saw in the crime scene pics is 'true' henna... the only color it can create is orange. I know the brand in the pic because it is the only one I have been able to find over the years that is still real henna- and I have enough experience with it that I know how to make it look natural on me-

(proof here:
http://cdn-sitelife.ehow.com/ver1.0...55f1a7-294c-4fdc-aa7e-9a9241bf8589.Medium.jpg)
I am going to go with henna on his hair, and hydrogen peroxide to disinfect his scratches/wounds. Unless he has a bad case of gingivitis, lol. Could be he just has really bad breath for all we know.