long hair
When you bleach your hair, you are stripping all the colour out of it. There's no way for the color to come back in, therefore, it will last forever. (or atleast until you cut it off.)
no, it won't bleach your hair but it will dry it out!
It is practically impossible. You have to have roots to bleach your hair and root on hair of at least a inch or more to safely bleach them. You don't want bleach directly on your scalp.
3hours
Usually, any time after. But you should check the dye and bleach boxes just incase. If you can bleach your hair after, just make sure your hair can handle all of the chemicals.
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.
It will not hurt as long as it is on the hair. You should not touch the scalp or your hands with it as it will burn and you should never use household bleach because your hair will dissolve in it.
How long will a hair Texturizer last
Hair bleach does not stay active for very long once it has been mixed. It begins to lose strength quickly and should be used within an hour.
its basically bleach with some chemicals in it.
Around 25 Years.