How to lighten hair without dying it.?

so i have heard about lemon juice and sun in and i also read about baking soda. but i need to lighten/bleach my whole head so i dont see lemon juice as a solution because i cant soak my whole head in acidy lemon juice, or can i? i heard about putting backing soda into the shampoo and use it like that. i mean at least id get my whole head with that. what should i do? any other methods? or anything?

oh and sun in isnt a solution for me since im allergic against one of the main ingredients.

but lemon juice and baking soda are not harmful.How to lighten hair without dying it.?
Oxygen peroxide .Only problem with that is as time passes with the sun it may turn yellow/orange. Or buy chamomile is also a natural herb

and its sold as shampoo.http://www.ehow.com/how_2139521_use-cham鈥?/a>How to lighten hair without dying it.?
There a shampoo at sephora, i'm honestly not sure of the name. But morripopp (youtube guru; google it) uses it and she had great review on it. She said that it lighten her blond hair and her friends saw a difference. I'm sorry i'm not sure what the name is! :(
I'm not sure what ';sun in'; is, but you could spend some time in the sun because the sun makes your hair lighter, but that wont completly do the trick. Uhm, you dont want to bleach your hair because that is horrible for your hair. You could try lemon juice and baking soda, but i am not sure that will work. Probably you should just dye it for sure results.



Good Luck!
thrt
I know a girl that uses the lemon juice every summer, she uses it on her whole head, lets it soak for a few minutes (laying down, so it's not totally against the head) and then sunning for a little bit. I think it looks really neat because it gives that sunbleached look on her whole head, it looks really beach-surfer girl. Then she rinses it out in a cool shower and conditions. She said to make sure you really rinse and condition your scalp.
Sit in the sun.