Can I dye my hair without bleaching it?
just maybe one purple streak I have brown hair
The purple will not show up as well, but yes, you still can. It will be a dark purple :)
Use purple (grape) kool-aid and find a video that gives you a way to do it. You don't need to bleach it and it will still show up.
It won't be as bright, but it will probably still show up