Bleach bath, or fading treatments - which is better for hair?

Stop fading. There’s no need, red will cover pink with no problem at all, it’s very forgiving. You main problem will be getting it to stick to the ends, but adding some of your direct dye to your conditioner would help a lot with this for a top up each time you wash.

Also, scrap the idea of an oxidative dye as it’ll be really bad for the ends. If they’re not holding dye they’re far too damaged to e able to take it. If you really must, use it only on your roots and nothing else previously processed and then cover it all with direct dye.

What I would actually do is bleach bath the roots (you don’t say what natural colour your hair is, but if a semi red will work, then so will a bleach bath but this way you can control the colour) with coconut oil on the ends (just washing bleach or dye over damaged hair damages it when it’s really bad). Then add a little more pink all over and get it an evenish colour that way. Then use an orange based red over the lot. If you want it more on the orange side than a pure red, add some more orange.

I have at the moment 2.5 inches of roots, then some pink for a few inches, then the rest is white down to the ends. My hair is pretty damaged from overprocessing in the past, so I've been growing it for a while - the roots and pink bits are fairly healthy, but the ends are quite damaged, dry, and haven't held onto the dye as well. It's a bit of a patchy mess.

What I want to do is fade out the pink as much as possible and then decide what to do - ideally I want to use an oxidative semi-permanent to go back to red, so that I get a more consistent base, and then top up with direct dyes if needed. Because of the white I'll need to pre-pig it in some way with a gold or orange, and the pink will not help with this at all!

Fading treatments aren't shifting the pink much now, and are still leaving my hair pretty dry and coarse (I'm using anti-dandruff shampoo plus baking soda, which has worked well in the past). The top layer looks more faded, but there's still a fair bit of brighter pink underneath the top layer. I have considered bleach bathing the roots and pink bits, but I've held off as I'm worried about the more damaged ends. Would this actually be better for my hair than repeated fading treatments?

Maybe I'm late with this, but no matter.
Here a few tips I got from this blog - mystraightener.com
- avoid sun chlorinated water
- reduce the usage of blow dryers and flat irons
- don't wash your hair every day
- look for sulfate-free shampoos
- find a good stylist