“When you have your hair lightened, you’re removing ... Green explains. “Everyone has underlying tones to their hair – the brassiness is actually those undertones creeping back in ...

And since dyed-blonde hair is often damaged and porous, thanks to the bleaching agent used to remove its pigment, your hair color might not hold up as long. Once a week, apply a deep conditioner ...

If you've got dyed blonde hair and you've been in chlorinated water, you may find yourself with a green tinge to your hair. You may try and convince yourself that it's given you a mermaid vibe ...

Also, “if you're blonde and your hair is getting green, you can use a chelating ... that your hair was exposed to while swimming. In removing these harsh metals, chelating shampoo helps to ...