Q&A for How to Whiten Yellow Hair

I suggest using a purple shampoo to remove the brassiness. If that doesn't work, talk to your stylist about toning your hair.

You may need several cups of water depending on the size of the basin that you're mixing the water and gentian violet in. It needs to be enough water to fully saturate your hair.

It stains everything, but once it's mixed with the conditioner, it can be washed off rather easily. (Still, I highly recommend using latex gloves and some kind of hair dye applicator such as a brush). I usually use three drops per quarter cup of conditioner, but I usually end up with slightly purple hair (which I like) so you might want to add less. But either way, the purple color can be washed out and you do NOT need to bleach your hair again.

It depends. If you use it mixed with water, then you don't need to rinse it out. You can also mix gentian with conditioner (as long as it's not yellow) or hair mask, in which case you will need to wash it out. Another benefit of using conditioneriwith the gentian is obviously less hair damage, as gentian does dry out your hair a little.

No it just stays yellow. You need to use a toner. Gentian violet works well and it's the cheapest. Just only use about a drop or two.

Lift the hair correctly and consistently. Tone with the appropriate choice of toner and finish with purple shampoo and mask.

In my experience, depending on the level of yellow in your hair, the purple shampoo you can get from the store probably won't remove it all to a desired white color. If you have it on hand, I'd say try the purple shampoo to see if it's effective, and if that doesn't work, use toner.

Its known to be quite effective if you use it out in the sun long enough, but not too long to damage your hair. Lemon juice is probably the most popular method for hair lightening.

Dye your hair a normal color and try again with it or use bleach again. Best of all, take a visit to the hairdressers, especially if that remedy doesn't work.

Yes. Blue and any purple shade will work. Green would work, too as would pink.

To make your hair soft, leave it in for about half an hour, then either air dry it or blow dry it.

I use nail polish remover and lots of soap and disenfectant; it will take a couple days to go away, though.

If you are seeing yellow, switch your shampoo to a purple shampoo. (Don't worry, it won't dye your hair; it is designed to get rid of the yellow.)

Yes you can. But if you don't want to damage your hair, only do it just once or twice. It is very important to keep your hair healthy.