I have dyed my hair a couple times first I had blonde higlights then I dyed it a dark red then a dark brown but it still has the red pigmentation I have long thick hair and my hair took very well to the color it hasn't faded much in months. I want to get it to a blonde how can I do that without bleaching if possible?

You have to strip out all the color then once you get to that base, you can dye it. Or if you want to go darker, you can dye it a dark brown but it might still have a tint of red which isn't ugly at all. That's how my hair is now.

It would be really hard getting it back to a blonde if it's a dark color but you could try buying a bottle of blonde and since you got thick hair you could try leaving it on there longer than normal and if that don't work than try waiting about a week are two and try again and eventually you could have it back to a blonde but it would be much easier just bleaching it