My hair is a dark brown, but now realised I've gone to dark.How could I lighten my hair just 2 0r 3 shades lighter without ruining it. As I have bleach underneath.:confused:

You could try using johnsons baby shampoo or washing up liquid, they both strip dye out of hair without damage. But how light it goes will depend on your base colour. As you have bleach underneath it should fade quite quickly, this process will just speed it up a bit. Hope this helps.

Mix baking soda with dandruff shampoo into a paste in a bowl. Put in on your hair and cover it with a cap. Leave it on for about 5 minutes keep an eye on it it lightens pretty quickly

To be honest, you can't lighten your hair without doing some percent of damage, minor or major. You should try repairing your hair.

How much does it lighten it?

I think it depends on how long you leave it on your hair. I let it pull about half of my color, but you have to keep an eye on it it pulls the color quick.

@Laurelt I am in the process of trying this(:

Does it have to be dandruff shampoo?