You have to bleach your hair before you dye it, because the bleach lightens your hair. You can't put dye on your hair until it's light, and you cannot mix the two together.
It most likely will not work you will need developer to make the bleach activate and do what it needs todo which is lighten your hair. If you use water it will not activate or help lift the bleach.
Generally speaking, you do need to bleach your hair for blonde hair if you have a darker color.
When you bleach your hair, you are stripping all color pigment from your hair. You will need to wait for new hair to grow back for your hair to return to normal.
You would need to bleach them again.
if you want a bright purple yes you would have to bleach your hair first, if you just want a purple that is dark and you only want to see it in the sunlight you would not have to bleach your hair.
It is possible to lighten the hair using regular hydrogen peroxide, but it will only lift about one level and will need to be repeated multiple times for a very light shade to result. Hair bleach + developer is the best way to go for lightening hair.
I'd call the cops and turn myself in.
You should if you have dark hair or else it won't work at all but make sure you don't like ... over bleach it or else your hair will fall out i would get a professional 2 do it 4 u tho
If you already have dyed your hair a dark color you need to bleach it out, your hair should turn a blonde yellow color, then bleach it again. Then buy a white hair dye. Then leave that dye in your hair for a good 45 minutes. Then your done! I wouldn't suggest dying your hair again for a very long time because this can be very damaging. And this will work much better if your hair is its natural color.
I suggest lightening the tone of your blonde hair with lemon juice, if it's a darker blonde. Bleach is a very strong product on your hair and damages it completely, or can make your hair fall out. I would not use it if I can lighten it with lemon juice or dye it to the blonde you want.
It won't ruin it but you might make it dry and you might not get the color you are wanting. If your hair is dark you will more then likely need bleach to lighten it. If you have color on your hair already you will definitely need bleach because color won't lift color.
No black is just a depositing color. Most bright reds sit on about the same level as a light brown so a color would work just fine. I would go to a hairdresser if your using multiple colors in your hair, it can be a bit disasterous. And bleach makes hair lighter.