Blonde here: lemon and sunlight work - if you have access to those!
i use naturitint to color my hair. It is NOT bleach, but hair color. Lots of 'natural' ingredients. Cruelty free. My hair has never looked better since i switched to this from some other (non vegan) chemicals in a box
you can buy at Whole Foods or other health stores. You can also buy on Amazonhttp://www.amazon.com/gp/product/B000OO ... ge_o02_s01